C. Excretion
Excretion is part of the excretory and really has nothing to do with the respitory system which deals with gas exchange.
A is the correct answer. A university study
Answer : The four psychological factors that affect how well a person adheres to an exercise program are;
1) Self motivation with self-awareness - When a person becomes aware about his health and body he starts working for it to maintain and keep themselves fit. Self motivation will help the person to continue the habit of exercising.
2) Personal Goal Setting - This is one of the important point for setting an individual goal for exercise and achieve that state of physical fitness freedom.
3) Self - efficacy - It is the time when a person will overcome barriers in physical exercises and will gain the boost and confidence to perform exercise with proper dedication, which will avoid relapse.
4) Physical activity environment - If the person who is undergoing daily training for physical fitness will perform better, because the surrounding environment will encourage that individual to stay motivated and achieve their fitness goal.
The most important amongst all is self-motivation, without which no individual can adhere to the regime and achieve their fitness goal.
Working on college applications is a component of Academic goals.
hope i helped!
I say c. cause it is show casing more then one
