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

Input:
Clock time would not set. Returned and received replacement. New one was able to set time initially. After short time the new one won't allow you to set time. Very unsatisfied!

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