Answer:
Option A is correct
The only expressions that is equivalent to
is, 
Step-by-step explanation:

here, Dividend=
and divsior is: (m+2)
Dividend states that the total number/expression which we are dividing ,
Divisor states that the number by which the dividend is being divided.
Use: 
Here, a =
and b= (m+2)
then,
= 
Therefore, the only expressions which is equivalent to
is, 