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:
This is just like the one I used at PT to stretch out post knee surgery.  This strap works great for the intended purpose - stretching out post exercising. I would buy again.

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