Instruction: Analyze the user's review text and determine the overall sentiment expressed, then choose the corresponding sentiment option from the provided list (A: very positive, B: positive, C: neutral, D: negative, E: very negative) based on the identified sentiment.

Input:
I have used a 3Com ISDN LAN modem for years with no problem, but when I looked at this one, I found it was not compatible with my cable system and was part of the 3Com home product line that has been discontinued. I think that means upgrades to the firmware are unlikely and that overall the support will be a negative.

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