Step-by-step explanation:
Given;
We are given the following exponential expression;

Required;
We are required to simplify the expression
Step-by-step solution;
We shall begin by applying the rule of exponents, which is;

Note that this rule applies when the base is the same for both sides of the expression.
The base here is 4 on both sides, hence we'll have;

Therefore,
ANSWER:
Option D is the correct answer.
