Solution:
The domain of any function is a set of possible input values that makes the funcion valid and acceptable.
Given the exponential function:
[tex]F(x)=5\times3^x[/tex]
The possible values of x is the domain of the function. Thus, for the function F(x) to be acceptable, the values of x are all real numbers.
Thus, the domain of the exponential function is all real numbers.
The correct option is B.
