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:
Great strap to use for back pain, and other stretching exercises Exactly the same strap used at my Physical Therapy clinic. Booklet very helpful as well.

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