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

Input:
I bought this to fix an issue where having the treadmill running would bring my internet to a crawl. The RFI/EMI filter this thing has really does seem to work! Plugged the surge protector to the wall and the treadmill to the surge protector and no more slow downs for my modem.

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