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:
This is made of thick and strong material, and takes up less space than the self-inflating camping pads. I timed myself blowing it up, and I was able to do it in about 10 minutes.

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