Instruction: Determine the sentiment expressed by the user in her review from the provided choices, and respond by selecting one of the available options.

Input:
This was a used model that I purchased. Mostly a good lens, great photos have come from this... But I feel like it may be somewhat sticky in there. I find unintentionally blurry photos sometimes, and so I'm thinking about getting it looked at.

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