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:
It is great! i could not be happier with this purchase, i use it all the time when i'm traveling and even when i'm home. Instead of going out to buy books, i download them from my public library and they are  automatically returned when the lending period is over. Saves me the trip!

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