which of the following is developed to result in the answer of one

Question

5 to the power of 0 plus 9 to the power of 0
13 - (7.42) to the power of zero
(-2.97) to the power of 0
3(8 to the power of zero)

Answer 1

The expression that results in the answer of one is:

5 to the power of 0 plus 9 to the power of 0