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:
The binoculars had double vision(I saw two images in the viewfinder) which, according to advice from those in the know, needed professional attention in order to be corrected; had to be returned. Do not purchase this product from Amazon. If you wish to have these budget binoculars(they appear to be held together by plastic), buy them from a reputable dealer where the product can be evaluated in person. I am very disappointed; I made a mistake in using Amazon.

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