EMERGENCY! PLEASE ANSWER ASAP!

Answer:
A
Step-by-step explanation:
This is repeated multiplication, so we can use another exponent
So
(3²) (3²) (3²) (3²)
can be also written as
3
² + ² + ² + ² = ⁸
so the answer equals to
3⁸
Thats why we can use another exponent
Hope you understand
:-)