Instruction: Analyze the user's review text and determine the overall sentiment expressed, then choose the corresponding sentiment option from the provided list (A: very positive, B: positive, C: neutral, D: negative, E: very negative) based on the identified sentiment.

Input:
Very well made, heavy piece of rubber. I've read many reviews where people claim they worsened their tendinitis with it, which could of course happen, but only because they strained an injury that wasn't yet healed. This product will definitely strengthen your arm tendons, but you should only use when you are fully healed, which with such an injury, can take at least six months! There's simply no quick fix with elbow tendinitis. Stretching and massaging (begin gently, and get more vigorous as you heal) were key for me. Listen to the pain; anything hurts, then stop and wait. Try again a few days later. Be very very patient and trust you'll heal (I admit, I had my doubts and sometimes despaired). But one day I felt I could try it again, and used it to gently rotate. After some time, I could eventually use it full strength, and it was only at that point that I really began to benefit from its use. Remember, it's just a rubber rod, and like any tool, should be used wisely.

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