Final answer:
No, Charlie should not be paid the full per diem amount for his first day.
Step-by-step explanation:
The answer to this question is option 2) No, Charlie should not be paid the full per diem amount for his first day.
Per diem refers to the allowance given to cover daily expenses while traveling for work. In this case, since Charlie's flight is scheduled for the evening and he has not begun his actual work assignment, it can be assumed that he has not incurred any expenses yet. Therefore, he should not be paid the full per diem amount for his first day.
Instead, Charlie should be paid a partial per diem amount that corresponds to the portion of the day during which he is actually on travel and incurring expenses. This could be calculated based on the time of his flight and the duration of his travel.