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! Fast focusing, razor sharp, very rich colors, at least on full frame. A bit too long without IS on a crop sensor. Very sharp even at f/2. Compared to 70-200 2.8, this lens a lot lighter, it's black, and cheaper, so taking this lens with you everywhere is eally not a big deal. The results are a very big deal though in terms of the wow factor! :) Buy it and enjoy it now, or wait for an IS version one day, but that will be more $$ for sure.

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