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:
Owned for a year or so, used it maybe 10 or 15 times, stopped working. I changed the batteries, and I'm not sure what else I could have done. The readout went all wonky and that was that. DO NOT recommend.

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