Answer: The correct option is (B) (2, 8).
Step-by-step explanation: We are given to find the co-ordinates of the midpoint of XL if X is at (-3, 4) and and L is at (7,12).
We know that
the co-ordinates of the midpoint of a line segment with endpoints (a, b) and (c, d) are given by

Therefore, the co-ordinates of the midpoint of XL are given by

Thus, the required co-ordinates of the midpoint are (2,8).
Option (B) are CORRECT.