Instruction: Determine the sentiment expressed by the user in her review from the provided choices, and respond by selecting one of the available options.

Input:
Mounts easy, and works pretty good - it needs a little help once in awhile - makes it easy to store and fast to use - I recommend that you tie the female end in a knot to keep it from slipping inside

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