Instruction: Carefully assess the user's review for any strong expressions of sentiment, either positive or negative. Based on your analysis, select the most fitting sentiment option from the provided list as output.

Input:
I bought this subwoofer about a year and a half ago. For that time it worked great until just recently. The sound was clear with a bunch of power. The other night I noticed that the area near it smelled "hot." I immediately unplugged the unit and noticed a black liquid/goo dripping out from under the amplifier. It concerned me that if I hadn't noticed the problem when I did, it could have started a fire. I have written to KHL to see if this was just a defect in my unit or a product defect. I will post their response here. Until I found out this could be a serious problem that needs to be looked into.

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