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:
After reading an article in the NY Times and watching a You Tube video, I ordered the red (weakest) Flexbar for my longstanding, chronic tendonitis.  The exercise is different than any of those outlined in the instruction manual -- be sure to read Dr. Timothy Tyler's method! There was immediate improvement, and by two weeks my pain was gone!  I highly recommend the Flexbar!

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