Instruction: Assess the user's sentiment in the provided review and select the appropriate sentiment option from the list as the answer.

Input:
I've been very careful to wash and dry the can opener, and it still rusted so much I can't use it anymore.  And as others have said, can lids don't come off cleanly, always a tiny sharp point left on can. Don't waste your money.

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