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:
These are really clear and accurate headphones.  They do not close you off from environmental noises, but will sooth you with incredible sounds of music, and cinema.  The quality of both highs and lows will cause you to ignore the enviorment around you and enjoy your world of sound.

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