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:
I have circulation problems in my hands, so my fingers get so cold they hurt. I decided to try HotHands-2 and I am VERY happy with them. Not only do they get really warm, but last for at least the full 10 hours. I will buy this product again for sure. What's really nice is you need no batteries, fluid, microwave or boiling water to get them going as some other produts do. Just open them up, shake them to activate and enjoy.

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