Instruction: Assess the user's sentiment in the provided review and select the appropriate sentiment option from the list as the answer.

Input:
The picture quality with this lens is just what I was looking for.  My only complaint is the autofocus.  It seems slow to lock in on some shots.  It is definetely worth the price.

Options:
A: very positive
B: positive
C: neutral
D: negative
E: very negative
Answer: B: positive