Instruction: Determine the sentiment expressed by the user in her review from the provided choices, and respond by selecting one of the available options.

Input:
5 monitor access is not possible with a standard mouse.
The Trackball allows you to move your finger to go from screen to screen.
Lifting and spinning a standard mouse is useless.

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