Task: Sentiment_Analysis
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:
a perfect fit for my glenfield bolt action rifle. It centers the scope over the barrel, whereas the previous mount did not.

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