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

Input:
I have two cars and one driver.  One of the cars sits idle much of the time, while I drive my smaller car for errands, etc.  Usually, the battery of the idle car declines to the point it won't start when I need it.  The Battery Tender keeps the battery charged and ready for use.

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