Find the value.
a.
1
b.
2
c.
3
d.
0.5

The value would be A.1

Example:

In mathematics, a square root of a number a is a number y such that y2 = a, in other words, a number y whose square (the result of multiplying the number by itself, or y × y) is a. For example, 4 and −4 are square roots of 16 because 42 = (−4)2 = 16.