Final answer:
The correct label of documentation for each task with the time that it was completed is 15 45, 5 34, 8 00. Therefore, option c is correct.
Step-by-step explanation:
The correct label of documentation for each task with the time that it was completed is option C: 15 45, 5 34, 8 00.
Military time is a 24-hour clock format, where the hours are represented from 00 to 23. The minutes are represented from 00 to 59.
When converting the given times to military time, 3:45 PM becomes 15:45, 5:34 PM becomes 17:34, and 8:00 PM becomes 20:00.