The correct answer to this open question is the following.
Although the question does not provide any options, we can say that the ethical standard that waiting to propose the study violates is "Informed Consent to Research."
In this case, Professor Hammond, first, had to inform the students about the study she was doing so the students were aware of this situation is class. So once she notified the class about her research, then ask them their consent to participate in the study. They probably had to sign a document that serves as an agreement of their participation. The students then would be aware of the details of the research and they would decide if they want to be part of the study. That is the ethical way to proceed.
In this statement, Maslow is arguing that not all of our needs are equally important. Some needs, such as food or thirst, are our priority, and only when we satisfy these do we begin to think about others such as love and self-esteem.
An example that shows this are people who live in extreme poverty and steal food. People in this situation would rather compromise their safety, freedom and maybe even self-worth in order to satisfy their hunger.
However, some evidence points to the opposite as well. For example, soldiers who join the war do so to fulfill abstract needs such as earning respect and finding meaning, even if this means risking their safety, having little to eat and facing many uncomfortable situations. Another example is athletes. Athletes train to a degree that is uncomfortable and hard. They also limit their food intake to certain types of food in order to achieve goals such as self-fulfillment and a higher self-esteem.
The correct answer to this open question is the following.
The impact of the commercial revolution (16th century ) in Western Europe was the following.
The commercial revolution's impact was that it generated a big competence between European countries in trade. The rules of trade and commerce dramatically changed due to the Columbian exchange and all the goods, raw materials, and natural resources were affected due to this competence between European nations, supply, and demand.
The commercial revolution also saw the beginning of financial institutions and the surge of banking institutions that coined money and made loans.
D. All of the above, I hope this helped, if you have any questions let me know! :)