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

Input:
We go through UPS batteries relatively quickly, with some pretty heavy, uncontrolled loads, and bad power outages in the summer in the city.  I always buy "real" APC batteries, as I've had some trouble with the knock-offs.

These have worked great, and no issues so far (6 months or so).

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