Instruction: Given the user's review, identify the user's sentiment from the listed options. Answer using one of the options.

Input:
I bought these earphones based on all the good reviews.  The sound was good, seemed sturdy enough for just treadmill running, and I was looking forward to at least a year of usability.  Unfortunately, the sound started to go out and get spotty acutely during a run and it's very annoying.  Lasted about 6 months so obviously I didn't get to a year.

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