Instruction: Carefully assess the user's review for any strong expressions of sentiment, either positive or negative. Based on your analysis, select the most fitting sentiment option from the provided list as output.

Input:
As a long-time polypro user, I was hesitant to go back to wool from the old days when it was synonymous with itching.  Used this shirt for skiing most of a season, and it's been great.  Smooth, no itching, and keeps me warm.

I use it as a base layer with underwear underneath and a hard shell pant outside.  As it gets warmer, I remove this layer.

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