Answer:
Option A.
Explanation:
The given expression is

According to the reflexive property of equality, all values are equal to itself.
a = a
where, a be any real number.
Using the reflexive property we can say that

It means -25 is equal or equivalent to -25.
Therefore, the correct option is A.
Note: If the given expression is
, then
![[\because √(ab)=√(a)\sqrt {b}]](https://img.qammunity.org/2020/formulas/mathematics/middle-school/9v4vbils4fyopi1e22kucwm9titp1bkb42.png)
![[\because √(-1)=i]](https://img.qammunity.org/2020/formulas/mathematics/middle-school/7t7d5c5krhm8hxlkwuabv87yojfn9bl2p8.png)
Then the correct option is B.