To show who is talking. Who specifically.
B. malevolent because of the definition and because it fits in the sentence.
I hope this helps:)
Answer:
Frost endured a number of hardships during his lifetime
Explanation:
Being disciplined at the workplace helps us to complete all the important tasks and responsibilities well on time. And when they are completed on time, stress levels don't arise at all. Plus it helps us elevate our productivity levels and quality parameters as we have more time in hand.