Gabriel is a researcher who has observed Adam and Sara’s 5-year dating relationship. He observes that Adam decides to ask Sara to marry him because he is willing to overlook Sara’s annoying qualities and focus on her positive qualities as a kind and thoughtful person. Gabriel utilizes the to analyze his research.

exchange theory    

Explanation:

Exchange theory: In sociology, the term "exchange theory" or "social exchange theory" is described as a perspective that generally explains social stability and change as a particular process of negotiating exchanges between parties. The exchange theory possesses that all human beings relationships are being formed by utilizing the "comparison of alternatives" and the "subjective cost-benefit analysis".

In the question above, Gabriel utilizes the exchange theory to analyze his research.

because his fleet was much lager than the english fleet. i hope this .