Answer:
Option B is correct that is \(4a^{10}b\)
Step-by-step explanation:
Given Expression: \(\frac{4\times b}{a^{-10}}\)
We have to simplify the Given Expression.
We use the following law of exponent,
\(x^{-a}=\frac{1}{x^a}\)
Consider,
\(\frac{4\times b}{a^{-10}}\)
\(=4\times b \times a^{10}}\)
\(=4a^{10}b\)
Therefore, Option B is correct that is \(4a^{10}b\)
