Explanation:
Committees are sometimes called little legislatures because of the influence they wield. These committees do most of the legislative work in Congress and therefore have great power in determining which bills get reviewed and in shaping the laws that are passed.
The answer is: Validity
To put it simply, validity refers to whether the study is actually measures the things that the researchers intended to.
Validity in every studies is extremely depended on whether the variables that the researchers use actually have a correlation with the phenomenon they're observing with the study.
In the case above, Valencia wants to measure people's narcissism. Because of this, The questions that she asked to her subject is really correlating with the subject's narcissistic tendencies.
I am really not sure what could be the answer, but the crusades were mainly because the emperor wanted to regain lost territory, Pope wanted to strength his power, to defend Christianity and as well, to monopolize important trading centers. Which I think it is..
C)Europeans merchants wanted spices and silks from the east.
