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:
I do NOT recommend this product. It is very dangerous, bikes flew off this and the nylon straps ripped on highway going 65mph. Luckily there weren't any cars immediately behind us and the two cars following had enough of a distance to brake. Having 4 bikes on the back of trunk is just way too many! I WANT A REFUND!!!

DO NOT BUY!! DO NOT BUY!! DO NOT BUY!!

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