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:
Has helped in allowing for more pain-free use of the injured arm. Simple to use after watching the suggested you-tube video. Would recommend this item to persons experiencing problems with tennis or golf "elbow"

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