Hi there! The 2nd answer is correct.
[tex]f(x) = {3}^{x} [/tex]
[tex]x = - 5[/tex]
We plug in x = - 5 in the formula and then we get the following:
[tex]f( - 5) = {3}^{ - 5} = \frac{1}{ {3}^{5} } = \frac{1}{243} [/tex]
Hence, the 2nd answer is correct