Answer:
The power is described as 3 to the fourth power.
The power can be expanded as 3 · 3 · 3 · 3.
The value of this power is 81.

Explanation:
The given power is

A power represents the product of the base number with itself, as many times as the exponent says that is

So, among the options, the ones that fit to this result are
- The power is described as 3 to the fourth power.
- The power can be expanded as 3 · 3 · 3 · 3.
- The value of this power is 81.