Answer: The correct option is (D)

Step-by-step explanation: Given that the co-ordiantes of the end-points of segment EF are E(xE, yE) and F(xF, yF) respectively.
To find the co-ordinates of the mid-point of EF.
We know that
the co-ordinates of the mid-point of a line segment with end-points A(a, b) and B(c, d) are given by

Therefore, the co-ordinates of the mid-point of segment Sf will be

Thus, (D) is the correct option.