3. A dance and song troupe has several actors, some of whom can sing, some can dance, and some can play instruments. Among them, there are 2 who can sing, 26 who can dance, and 22 who can play instruments; 8 can sing and dance, 10 can sing and play instruments, and 11 can dance and play instruments; it is also known that the number of people who can only do one of the three is equal to the number of people who can do two or more. The total number of actors in the troupe is ( ).
A. 72
B. 48
C. 46
D. 43
3. C.

Let the dance troupe have $x$ people, and $y$ people be triple threats, then $\left\{\begin{array}{l}x=24+26+22-8-10-11+y \\ \frac{1}{2} x=8+10+11-2 y,\end{array}\right.$ we get $x=$ $46, y=3$