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

Input:
This worm, when rigged "whacky"  is touted by some as a great winter bait for speckled trout, which it might be.  However, after extensive use of it I caught a grand total of zero, while the usual baits produced.  My experience doesn't mean it is ineffective, however.  I'm sure you can catch plenty of bass and other fish with it.

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