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

Input:
Running my network connection through this surge protector drops my internet speed down to 100mbs (non DOCSIS 3.0 speed). The connection indicator on my Motorola SB6141 goes from blue (DOCSIS 3.0) to amber (non DODSIS 3.0). This is totally unacceptable.

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