Answer:
The Option A. 3 is correct.
Explanation:
The function is given to be :
![f(x)=(1)/(4)(\sqrt[3]{108} )^x](https://img.qammunity.org/2018/formulas/mathematics/high-school/yzfmi0yjqmdv8ljxm3o85234tzm4724jwp.png)
Now, we need to simplify the above function in order to obtain the base simplified form of the given function f(x)

Hence, the base simplified form of the given function f(x) is 3
Therefore, The Option A. 3 is correct.