Graduate Record Examinations (GRE) Quizzes Graduate Record Examinations (GRE) Math

Question:
If f (x) = ln(logx) and g(x) = 10^e-7 Then (fog)(x) = ?

Option A):
-7
Option B):
ln⁷
Option C):
e^-7
Option D):
7
Option E):
e⁷

Correct Answer is Option A):
-7