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

Input:
I bought this filter specifically for a trip to Yellowstone, so I'd be able to see into the depths of hot springs, etc. It worked great for that purpose, but so far I've been unable to remove the filter after forgetting it on my lens overnight. I've tried a rubber glove (suggested by a camera shop), a rubber band with no luck. I'm currently waiting for a set of filter wrenches to arrive which will hopefully resolve the issue.

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