According to a source, the answer is the events at Abu Gharib prison in Iraq. This experiment was reflective of the events at this prison where American soldiers were told to guard the prisoners. Thank you for your question. Please don't hesitate to ask in Brainly your queries.
1) Asking people involved whether they understood the content and whether they have any questions - but this might not be efficient if they don't answer because they are for example shy
2) Asking people to repeat the communication in their own words - this is probably the most efficient strategy.
A - the cultivation of Wheat requires less rain than does rice.
This is the correct answer because the northern part of China also receives less rain per year. Their anual amount of rain doesn't allow them to raise rice as effectively as it does for wheat.