Arithmetic sequence is -5, x, y, z, -25
Now, a = -5
a(n) = a + (n - 1)d
a(5) = -5 + (5 -1)d
a(5) = -5 + 4d = -25
4d = -25 + 5
d = -20/4
d = -5
So, a(2) = -5-5 = -10
a(3) = -10-5 = -15
a(4) = -15-5 = -20
Your Sequence is -5. -10, -15, -20, -25
In short, Your Answer would be Option A
Hope this helps!
