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

Input:
I finally sharpened all my knives! This sharpener is inexpensive and works very well. I use a steel before each use and the sharpener only once every two weeks or so.

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