Answer:
D results from studies conducted on birds and other animals.
A major obstacle to developing good human relations skills is that people fear of taking risks.
Answer:
Cheering and positive despite her own problems
Explanation:
Effie tries to attempt to remain positive despite her taxing job being Peeta and Katniss' liaison to the Capitol, especially when she has the full knowledge that the two probably will never come back from the games alive.
Answer: Participle
Explanation: It shows someone Particpating