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 is the best of the worst. I use it commercialy for brisket.  I replace it every 2-3 months when it breaks.  It's the best knife but it breaks easy and quickly under high usage.  Wish there was a better one in the market, I've tried them all.

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