Instruction: Assess the user's sentiment in the provided review and select the appropriate sentiment option from the list as the answer.

Input:
I share a carpool with 3 other guys, one of them insists on playing punk rock music when he drives. With the noise cancelling headphones I can listen to the music I prefer without having the volume turned up so loud it is painful just to dround his music. The noise cancelling headphones help to save my hearing and the carpool. The sound quality of the headphones is better than my hearing can detect so my MP3 player sounds very good,

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