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:
Very good product. I love the quality of sound and the battery life. Very Slim , user friendly remote control, with loads of features.
Recently we made a long trip (10 hrs drive) and the battery life was awesome.
I faced some problems in getting back the mail-in-rebate, but after calling them twice they sent me the check for $30 promptly.
Regards
Mani

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