Answer:
Open-ended questions are broad and can be answered in detail (e.g. "What do you think about this product?"), while closed-ended questions are narrow in focus and usually answered with a single word or a pick from limited multiple-choice options (e.g. "Are you satisfied with this product?" → Yes/No/Mostly/Not quite).
Explanation:
The answer to this question: C
With the given scenario above, the best action to handle this situation is to mention the problem to your supervisor. Though it may not be your job to tell on your co-worker's problem, it is still best to explain it to your supervisor to assist and to ask help in order to give assistance to your co-worker who has been experiencing difficulties.
I believe the answer is so she could share her story with other people faster. As you know stuff goes around the internet fast.