Answer:
Theory.
Explanation:
Given that Jamaal comes with several connected ideas to explain why there are differences between groups, most likely through observation and reasoning, these ideas would be best described as a theory. A theory is a rational type of thinking, most likely after a contemplative state, about a particular phenomenon. In this case, all of Jamaal's ideas about the phenomenon (two groups that behave diferently) could be introduced or developed as a theory.
