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.
There is the bully. These people may be bullying the person right in front of them or behind their backs. They are the main abuser.
There is the one who is being bullied. These people are being picked on and abused. They do not fight back, if someone does fight back it's not necessarily bullying. They are the main victim.
There is the assister. These people don't start the bullying but they also bully the victim. They could encourage it or join it.
There are the reinforcements. They don't directly get involved with bullying, but are like an audience. They support the bully and cheer them on.
There are the outsiders. They stay away from the situation and do not defend the victim or support the bully.
There are the defenders. They come to the victim's defense and speak up for them, comfort them. They support the one who is being abused.
The hottest layer in the earth is the core. More specifically, the inner core is the hottest of the two core layers. The temperatures in the inner core range from 9,000 to 13,000 degrees F.
The answer would be B.
Because the water brought by monsoon rains allowed agriculture to develop away from India's major rivers.