Answer:
Option d is correct.
Domain = all real number
range = positive real numbers
Explanation:
Given the function:

Domain of the function is all real numbers except where the expression is undefined.
In this case, there is no real number that makes the expression undefined.
Domain of f(x) =
= a∈R
Range is the set of all valid f(x) values.


Therefore, Domain is all real number and the range of function is positive real number