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:
Great name, great quality, modest cost. I've used Pyrex all my cooking life which is about 48 years. You will not be disappointed if you buy these.

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