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

Input:
.These headphones have amazing sound and are so well thought out and comfortable. A lifetime guaranty was unexpected. I am going to buy a  second for when I travel. They do not disappoint!

5 stars

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