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

Input:
I have golfers elbow from heavy weightlifting (too repetitive of a routine I guess). The company suggests this should work for golfers elbow as well - and even offers a video tutorial on its site - but I have felt zero improvement with this product.

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