Answer: The correct option is (A) (-8, -3).
Step-by-step explanation: We are given to find the vertex of the following curve:

we know that the standard equation of a curve in vertex form is given by

where (h, k) is the vertex of the curve.
From equation (i), we have

Comparing the above equation with the standard equation of a curve, we have

Thus, the required vertex of the given curve is (-8, -3).
Option (A) is correct.