Answer:
An example of good time management is A. Jonah decided to start working on a science project early because he had some free time on his hands.
Explanation:
The elements of good time management are delegate tasks (when you work in a team as a leader), prioritize work, Schedule tasks, Set up deadlines, Avoid procrastination, Avoid stress, avoid multitasking, Start early, Take regular breaks, Learn to say no.
The situation of Jonah is the only one that covers several points of this list the other situations, on the other hand, show irresponsible and disorganized behaviors which are not examples of good time management.