Instruction: Carefully assess the user's review for any strong expressions of sentiment, either positive or negative. Based on your analysis, select the most fitting sentiment option from the provided list as output.

Input:
I've had two pairs of vanquishers in the past.  The second pair finally gave in to scratches from years of abuse so I ordered another.  The nose piece was much more difficult to change out than the past pairs I've owned.  I thought I was going to break them.  But the deal breaker is how quickly this new pair fogs.  I've never had a problem before with foggy vanquishers.  Maybe it's a defect but it's really obnoxious to have to rinse them out quick on every single repeat.  And the rinsing is a vicious cycle.  Every time you have to wipe or rinse, as expected, the quicker they fog the next time.  After 2 months of this mess I'm looking for something else.  Too bad, they have the most comfortable fit ever.

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