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

Input:
The JLab earbuds are ok. Though they are not nearly as good as the similar model with microphone. The real problem with this product is the case. I received in the mail the buds and the accompanying black case, plus a grey JLab case that I ordered for another pair of earbuds. The black case is clearly defective because it does not close. The zipper cannot zip the warped case. I hope this is just a case of the one defective case that got through.

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