Could it be like a surgical nurse or maybe a pediatric nurse?
Sunlight, oxygen, water, nutrients/food, and stable conditions such as temperature
I would say A or C would fit the role a topic sentence should play. Simply because B doesn't make sense unless given context with A. D doesn't make sense unless given context from A. So because of the lack of context between B and D if put in the first sentence, I would narrow it down to A or C. I'm assuming there is a was in between "Barbara" and "tired" within the first sentence. Hope that helps.
B lots of son i do believe
Answer:
The answer is<em> "Failure is a part of human life."</em>