Answer:
My sister <em><u>is</u></em> a teacher. She <em><u>isn't</u></em> a student.
(mistake in question Its She when sister is used)
My answer would be leadership or management. This is because as a leader, you manage other people, you supervise other people, you hopefully motivate other people and as a leader you need a good strategy.
The art of getting things done through people.
Leadership.
<span>C. A school nurse misses work because she is not feeling well.</span>
The answer is A personification because the author is giving a human characteristic to a non human object.
Good luck! Hope this helped.