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 used this product and now I have no picture at all. Before using this my picture was clear but I kept getting a blue screen saying to clean my heads. I thought I would give it a try. So disappointed. I will probably have to have it professionally cleaned.

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