Instruction: Analyze the user's review text and determine the overall sentiment expressed, then choose the corresponding sentiment option from the provided list (A: very positive, B: positive, C: neutral, D: negative, E: very negative) based on the identified sentiment.

Input:
These speakers sound great but they break down too easily. I do not have much luck with these.  Buyers be aware to keep the receipt for exhange or work with stores that allow exchange.
These speakers sound comparable with Altec Lansing 621 and slightly better than Monsoon 1000.

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