Instruction: Analyze the user's review text and determine the overall sentiment expressed, then choose the corresponding sentiment option from the provided list (A: very positive, B: positive, C: neutral, D: negative, E: very negative) based on the identified sentiment.

Input:
These are very good headphones, you just need to make sure you do your 40 hours of burn-in. The instructions that are with the product give you a link to a site that you can use eight times (at 5 hours per session) to get a proper burn in of your headphones. Follow these directions and you won't need to leave a negative review.

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