3. There are two concentric circles, with 4 different points on the circumference of the larger circle and 2 different points on the circumference of the smaller circle. The number of different lines that can be determined by these 6 points is at least ( ).
(A)6
(B) 8
(C) 10
(D) 12
3. B.

As shown in Figure 3, there are 4 different points $A, B, C, D$ on the circumference of a large circle, and the lines connecting them can determine 6 different lines; on the circumference of a small circle, there are two points $E, F$, at least one of which is not the intersection point of the diagonals $AC$ and $BD$ of quadrilateral $ABCD$. Therefore, among the lines connecting it with $A, B, C, D$, at least two are different from the lines connecting $A, B, C, D$ pairwise. Thus, these 6 points can determine no fewer than 8 lines.

When these 6 points are placed as shown in the figure, they can determine exactly 8 lines.

Therefore, the minimum number of lines that can be determined by 6 points satisfying the conditions is 8.