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

Input:
The helmet arrived on time. It looks like carbon fiber finish. Its very light weight and well made. The back of the helmet has a knob that you can adjust to comfortably fit your head. For the cost its definitely worth it.

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