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 enjoyed this lens.  On one of my first times out with it I found a Great Blue Heron and the pictures came out great even with relatively low light.

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