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've used hand warmers forever and never given it a second thought.  I must have either got a bad batch, or.....?  I activated my warmers as usual and put them in my pockets as I got my coffee. The warmers lasted about 2 hours before they lost heat. I activated another set, and got about 3 1/2 hours out of them. My batch was very inconsistent and I might be imagining things, but the package appeared smaller than I remember.

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