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 purchased this for my office and it works perfect. So, after my timer on my oven stopped working I purchased it for home. After 2 weeks it stopped making sound. What good is a timer if you can't hear it? It's a big bummer......

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