Answer:
Conflict Theory
Explanation:
The conflict theory was used to explain or describe some social phenomena, including wars and revolutions, wealth and poverty, discrimination and domestic violence.
It's focus was on the level of competition that is between certain groups in the society due to limited resources.
It also talked about economic institutions as being the major tool used to measure the struggle between the two classes or groups, and how it is used to maintain some sort of inequality and balance between the classes.
If Cecelia wants to lower her heart rate she should lower the speed she is going at on her tradmill so that she does not have to breath was much for oxygen
I would probably say C. economic class