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:
I bought this for my Canon 50mm 1.8 lens and it has been wonderful! I was impressed by the quality of the filter considering it was very cheaply priced. Great buy!

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