what is x^x if x = 5^2

 Given options:

A 5^5

B. 5^25

C. 5^50

D. 5^125

 They have given the x value so let's substitute these values into it 

5^2^5^2. this might be a little confusing 

5^2 = 25  

5^2^25 

2*25= 50

5^50