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 useful and bright. When I use it... it's like I'm reading with the ceiling lights on. It's very easy to point the light how you want it. The clip is narrow enough to fit between the spine of the cover I use (that was the main requirement in my search for a book light). I chose purple to match my kindle's purple cover. I am 100% satisfied with this purchase.

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