Given that f(x)=ln(x+13)+13 and g(x)=e47x+25 , find (gf)(x)

Select the correct answer.

(gf)(x) =

a)ln(e^{(47 x+25)}+13)+13

b)(e^{47x+25})(ln(x+13)+13)

c)e^47x ln(x+13)+13+25

d)e^{47(ln(x+13)+13)+25}