You should use your Microsoft account because this will sync to all your windows devices.
Answer:
C
Explanation:
Predicate methods typically test a condition and do not modify the object on which they're called.
I think the First reason is; it provides the best way of business communication.
Second reason, streamline communication
Third reason cost effective resource sharing :) (hope this helps)
I've included my code in the picture below. Best of luck.