Repetition usually tells us that the someone wants a large emphasis on this word: that it has a significant meaning to them, and/or possibly the whole tale itself.
Answer:
Poverty in America in the 20th and 21st Centuries
Explanation:
"Use an appropriate level of formality."
Questions and disagreements are allowed to happen in effective interactions. However, formality is very important for effectiveness.
I think it’s D. D: because a psychologist who specializes in working with teen athletes is realizable since it’s what she specializes in