Write an Equivalent Expression in Exponential Form $$\log ( x + 4 ) 13 = 1$$

Multiple Choice

Write an equivalent expression in exponential form.
- $$\log ( x + 4 ) 13 = 1$$

A) $\{ - 9 \}$
B) $\{ 9 \}$
C) $\{ 13 \}$
D) $\{ 17 \}$