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 had high hopes for this based on raving reviews from others.
During my 45 minute commute to work the cooler barley gets a chill to it. I've added ice to help out but I feel I just don't have enough in the box so it is inefficient. My thinking is that I am not using as designed and like most other cooling devices, the more you have it in the more efficient it is.

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