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:
Excellent lens. Superb built and perfect quality photos. I strongly recommend it.

The out of focus are very harmonious and I love the colors. I use this lens with a 600D and I enjoy going out to shoot.

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