Task: Sentiment_Analysis
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:
I buy these for my wife.  She works at a school where the heat in her room is insufficient.  The Hand warmers provides the needed warmth and comfort to survive the busy, cold day.

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