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:
My wife ordered this product to work out with on her ankles. She has a very weak left ankle (due to an injury), and tends to trip a lot. This item works great to strengthen her muscles surrounding her ankles. I have noticed an improvement in her stride with just a few weeks of exercise. Seems to be just what she needed.

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