Which statement must be true ?

Answer:
The correct answer is B.
Step-by-step explanation:
The opposite of Square root is squaring, which is ².
Answer:
[tex] \frac{ \sqrt{a} }{ \sqrt{b} } = x \\ [/tex]
squaring both the sides
[tex]{( \frac{ \sqrt{a} }{ \sqrt{b} }) }^{2} = x ^{2} \\ [/tex]
B. [tex] \frac{ {a} }{ {b} } = x {}^{2} \\ [/tex]