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

Input:
KEEPS ICE FOR 24(read 6) hours! Totally false advertising.

One day we even left it closed and I had a sun reflector on it blocking any sun from heating it up, while it was under a free in 70 degree weather. Ice gone in less than 8 hours and we didn't open it once because we were hiking. My trader joe's freezer bag would have kept stuff frozen longer.

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