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:
It straightens microscopic folding of the blade, but it won't make a dull blade like new. Use this every couple of uses of your knives and when this stops improving their cutting ability, use an actual sharpener or take your knives somewhere to be sharpened.

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