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:
Last year I purchased Bullseye 9 noise protector headphones for my 12 year old son, who has a hearing sensitivity because of his autism. Even though they are fairly inexpensive, I'm quite impressed by them. Epecially since they've held up nicely, even with all the rough handling my son gives them daily. They're fully adjustable, and comfortably fit a variety of head sizes. My son wears them for hours. I highly recommend them!

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