Answer:
D
Step-by-step explanation:
Just plug in and check. Plug in the first digit for x and the second digit for f(x)
First, try A. Does 5^0= 5? no so A is wrong
Now try B. Does 5^5=1? no so B is also wrong
Next try C. Does 5^0=0? no so C is wrong.
Finally, try D. Does 5^1=5? Yes so D is correct.
