With no explanation, chose the best option from "A" or "B". Ivan is planning to take a day off work to go have fun with friends and is about to call his boss to tell him he won't be in. Ivan wants to pick a reason for why he won't be at work.

A: Ivan tells his boss that he's not feeling well and will have to use one of his allotted sick days.
B: Ivan tells his boss that he wants the day off for personal reasons and will use one of his allotted vacation days.
B.