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:
I bought this lens for my boyfriend for Christmas. He likes it and it works with his camera but he said that it's meant for the newer models. I don't know all of the details because I don't know much about photography but it had something to do with automatic vs. manual focus so watch for that.

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