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

Input:
I needed an extension cord so I could plug in my in-ear headphones to my monitor at work....the monitor was at the back of my work space so the cord on the headphones was too short.  This worked perfectly.

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