Instruction: Assess the user's sentiment in the provided review and select the appropriate sentiment option from the list as the answer.

Input:
We bought this blender to make fruit smoothies, usually with soft fresh fruit and ice.  We always start with our liquid, then the fruit, then the ice. Almost immediately, we detected a burning smell.  I thought it was supposed to have an auto shut off to prevent the motor from burning.  Now, we are hesitant to use it.  We thought this "top of the line" blender would be heavy duty enough.  Oh well.

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