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:
What more is there to say about this must have safety feature.  Lens is free of optical defects and a must for anyone who does not want scratched primary lenses!

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