Instruction: Assess the user's sentiment in the provided review and select the appropriate sentiment option from the list as the answer.

Input:
I ordered this balance pad to do PT exercises at home after my ACL surgery on my left knee.  It has proved very helpful in doing many of the balance exercises to strengthen my knee.  I like the generous size of the pad as well.  I actually wish it was a little less rigid or maybe I have just advanced in my physical therapy!  Would definitely recommend this item for improving balance.  Great quality & I will continue to use long after therapy to maintain great balance.

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