Instruction: Given the user's review, identify the user's sentiment from the listed options. Answer using one of the options.

Input:
Disappointed -got the ball but no PLUG for it (and discovered this after blowing it up).  Now the hassle of finding and buying a plug for a product that should have come with it.  :(  Much more hassle than its worth.  This will end up in the back of the closet in short order.

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