Answer:
A. 
B. 
Step-by-step explanation:
We have been given an expression
. We are asked to choose the correct options that our equivalent to our given expression without exponents.
Let us check our given choices one by one.
A. 
We know
, therefore, option A is the correct choice.
B. 
We know
. So, we can rewrite our given expression as:

Therefore, option B is the correct choice.
C. 
Since option C contains exponents, therefore, option C is not correct choice.
D. 
Since term
is missing from option D, therefore, it is not a correct choice.