2. As shown in Figure 1, in a $3 \times 4$ table, one $1 \times 1$ small square in the top-left corner is colored red. Then, the number of rectangles in this table that include the red small square is ( ) .
(A) 11
(B) 12
(C) 13
(D) 14
2. B.

In this table, the rectangle can be determined by the two endpoints of its diagonal. Since it needs to include the red small square, one endpoint is determined, and the other endpoint of the diagonal has $3 \times 4=12$ choices.