Instruction: Carefully assess the user's review for any strong expressions of sentiment, either positive or negative. Based on your analysis, select the most fitting sentiment option from the provided list as output.

Input:
zero complaints, a friend who bought the FM transmitter could not believe the sound quality from the cassette adapter.  There's a faint clicking sound that comes from the cassette player but once the music begins you can't even hear it.  Sounds like the music is being played from a CD.

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