Answer:
Option (d) is correct.
The given expression
using base only once is 
Step-by-step explanation:
Given expression 
We have to write the given expression using each base only once.
Consider the given expression 
We know, property of exponents, 
Using the above property we have,

Thus, simplify , we get,

Thus, option (d) is correct.
The given expression
using base only once is 