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:
Very comfortable. Great sound, very balanced. The first headphones I've used that I have no desire to adjust the sound with an EQ. Very, very happy with these headphones.

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