Find the difference between the existing terms:
-8 / -4 = 2
-16/-8 = 2
This means the next term is the previous term multiplied by 2:
The first term is given as -4
You would start with the first term ( -4) then multiply it by the difference of terms ( 2) raised to the nth term (n) minus 1.
An = -4 * 2^n-1
The answer is A
