Instruction: Given the user's review, identify the user's sentiment from the listed options. Answer using one of the options.

Input:
This is one of the best inventions ever.  The school I work at, Shadow Hills, has a computer lab, and every computer has this.  It makes it's memory power better, and I really like that.  So if I were you, I wouldn't miss out on this.

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