Instruction: Determine the sentiment expressed by the user in her review from the provided choices, and respond by selecting one of the available options.

Input:
This little cb has been working great! Installed in my Jeep in May and it's been out in the trails about 10 times since then. It's never let me down

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