Answer:
Option 2 - Exponential function
Explanation:
To find : Which of the functions below is the inverse of the logarithm function?
Solution :
The inverse of a logarithmic function is an exponential function.
As by property of logarithmic,

For example -
Taking log function,

Applying property it convert into exponential function,

The graphs of the logarithmic function and the exponential function are mirror images of one another.
Therefore, Option 2 is correct.