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:
Excellent sub, great low frequency response without rattling the car.  I had this installed in an acura integra for about 5 years, and it finally died.  Maybe the cold or hot weather extremes shortened the life of the amp.  The power amp or electronics burned out suddenly, the servo light blinks occasionally "resetting" and no sound.  I will definately buy another one, it got alot of use, and sounded great.

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