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 love these economical headphones! This is one of the best buys on amazon! These headphones really sound great! They are really light on your head and over your ears. The sound quality is really amazing for as cheap as they are. I've purchased $30 Sony headphones in the past that squeezed my head and gave me headaches that didn't sound as good as these. I purchase 3 of the Panasonic headphones at a time and if a pair gets demolished by a chair or something spilling on them, I always have a spare.

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