C. They made it easier to perform calculations.
1. Baptists
2. Presbyterians
3. Quakers
Hope this helps!
Answer: Research question
Explanation:
Research question is defined as the question to inquire about any particular incident or situation.This question is answered by candidates to start any qualitative and quantitative research or study. This question initially helps in gathering content, data,facts, etc to investigate and analyzing further on the issue.
According to the question, Dr. Jenka has raised a research question by inquiring about the impact of war in Afghanistan and Iraq on children's elevated fear and concern.This will help him to start the research on that subject.
