Testing Quizzes Quantitative Testing

Question:
If log1227= a then find the value of log616:

Option A):
(4(3-a))/(3+a)
Option B):
(4(3-a))/3-a
Option C):
(4(3+a))/3-a
Option D):
(3(4-a))/3+a

Correct Answer is Option A):
(4(3-a))/(3+a)