Is this Ella my granddaughter? What motivates her is the need to avoid pain, and the need for growth (praise, opportunity, et al).
I assume it is not my granddaughter. So you have to examine your Ella in light of these "theories", and describe what changes her behavior. I think I would start a paper such as this with describing Ella, and the things she likes, dislikes, how she interacts, and how she reacts to pain, and growth opportunities.
Since we do not know the situations of these three people, we cannot comment on their motivation. The first involves physiological aspects (e.g., level of physical maturation, endocrine aspects, physical diseases, effects of medicines/drugs, etc.), while the second emphasizes psychological and social factors (e.g., self esteem, family situation, culture, etc.). Of course, the interaction view considers both sets of factors.
You should be able to find summaries of these views in your textbook. However, I searched Google under the key words "Psychosocial motivation" to get these possible sources:
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You can do the same for your other concepts. In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.
I hope this helps a little more. Thanks for asking.
The rest of the assignment says that all want to obtain a promotion at work. The assignment focuses on what motivates each by using each theory of motivation.