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:
this is a great device. BUT if you consider to operate this device not in the basement or attic, think about to buy a quiet one. It spreads an annoying high pitch beep.

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