Instruction: Determine the sentiment expressed by the user in her review from the provided choices, and respond by selecting one of the available options.

Input:
My wife is a Personal Trainer and uses the BOSU at the gym. She wanted one for us to use at home so we found this for $99. I purchased this product a month ago and we are very satisfied with it. It is a great addition to our workout. The delivery time was great and getting it put together was easy. It comes with an air pump, so just connect it and step on the pump until its inflated (we pumped it to 9" - 10"). I would recommend this product to anyone!

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