Which of the cones listed below can be formed from a $ 252^\circ$ sector of a circle of radius $ 10$ by aligning the two straight sides?
[asy]import graph;unitsize(1.5cm);defaultpen(fontsize(8pt));draw(Arc((0,0),1,-72,180),linewidth(.8pt));draw(dir(288)--(0,0)--(-1,0),linewidth(.8pt));label("$10$",(-0.5,0),S);draw(Arc((0,0),0.1,-72,180));label("$252^{\circ}$",(0.05,0.05),NE);[/asy]
[asy]
import three;
picture mainframe;
defaultpen(fontsize(11pt));
picture conePic(picture pic, real r, real h, real sh)
{
	size(pic, 3cm);
    triple eye = (11, 0, 5);
	currentprojection = perspective(eye);
    real R = 1, y = 2;
        
	triple center = (0, 0, 0);
    triple radPt = (0, R, 0);
    triple negRadPt = (0, -R, 0);
    triple heightPt = (0, 0, y);
    
	draw(pic, arc(center, radPt, negRadPt, heightPt, CW));
	draw(pic, arc(center, radPt, negRadPt, heightPt, CCW), linetype("8 8"));
	draw(pic, center--radPt, linetype("8 8"));
	draw(pic, center--heightPt, linetype("8 8"));
	draw(pic, negRadPt--heightPt--radPt);

	label(pic, (string) r, center--radPt, dir(270));
    if (h != 0)
    {
		label(pic, (string) h, heightPt--center, dir(0));
    }
    if (sh != 0)
    {
		label(pic, (string) sh, heightPt--radPt, dir(0));
    }
    return pic;
}
picture pic1;
pic1 = conePic(pic1, 6, 0, 10);
picture pic2; 
pic2 = conePic(pic2, 6, 10, 0);
picture pic3; 
pic3 = conePic(pic3, 7, 0, 10);
picture pic4; 
pic4 = conePic(pic4, 7, 10, 0);
picture pic5; 
pic5 = conePic(pic5, 8, 0, 10);

picture aux1; picture aux2; picture aux3;
add(aux1, pic1.fit(), (0,0), W);
label(aux1, "$\textbf{(A)}$", (0,0), 22W, linewidth(4));
label(aux1, "$\textbf{(B)}$", (0,0), 3E);
add(aux1, pic2.fit(), (0,0), 35E);

add(aux2, aux1.fit(), (0,0), W);
label(aux2, "$\textbf{(C)}$", (0,0), 3E);
add(aux2, pic3.fit(), (0,0), 35E);

add(aux3, aux2.fit(), (0,0), W);
label(aux3, "$\textbf{(D)}$", (0,0), 3E);
add(aux3, pic4.fit(), (0,0), 35E);

add(mainframe, aux3.fit(), (0,0), W);
label(mainframe, "$\textbf{(E)}$", (0,0), 3E);
add(mainframe, pic5.fit(), (0,0), 35E);
add(mainframe.fit(), (0,0), N);
[/asy]
1. **Determine the arc length of the sector:**
   The sector of the circle has an angle of \(252^\circ\). The circumference of the full circle with radius \(10\) is given by:
   \[
   C = 2\pi \times 10 = 20\pi
   \]
   The arc length \(L\) of the sector is a fraction of the full circumference, specifically \(\frac{252}{360}\) of it:
   \[
   L = \frac{252}{360} \times 20\pi = \frac{7}{10} \times 20\pi = 14\pi
   \]

2. **Form the cone:**
   When the sector is formed into a cone by aligning the two straight sides, the arc length \(L\) becomes the circumference of the base of the cone. Let \(r\) be the radius of the base of the cone. Then:
   \[
   2\pi r = 14\pi
   \]
   Solving for \(r\):
   \[
   r = \frac{14\pi}{2\pi} = 7
   \]

3. **Determine the slant height:**
   The radius of the original circle is the slant height \(s\) of the cone. Given that the radius of the original circle is \(10\), the slant height \(s\) of the cone is:
   \[
   s = 10
   \]

4. **Identify the correct cone:**
   We need to find the cone with a base radius of \(7\) and a slant height of \(10\). From the given options, we see that option \(\textbf{C}\) has a base radius of \(7\) and a slant height of \(10\).

Conclusion:
\[
\boxed{C}
\]