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:
I love the length and durability, the color, and the function of this mat!  I am just so pleased that I invested the money to purchase a quality mat,

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