Answer:
A.
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Explanation:
The expression
can be written as:
since 4 is the product of 2².
This can be simplified into:
, which can be simplified according to the law of exponents that states: Whenever you have an exponent expression that is raised to a power, you can simplify by multiplying the outer power on the inner power:

This allows us to simplify the expression into:
, which we can simplify further using the exponent property that allows us to add exponents when 2 numbers with the same base are multiplied:
=
