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

Input:
I am a lifeguard at the Great Wolf Lodge , and the whistle is amazing, whistles are critical to be able to activate emergencies and to be able to work after being wet, and be loud enough to echo through out our huge water park. The fox 40 classic does this job flawlessly.

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