Answer:
B. Teachers serve more as mentors and guides than as primary sources of information is the correct answer.
Explanation:
Answer: Those who studied alone were exposed to the CONTROL condition.
Explanation: In an experiment, there are usually 2 conditions.
1.) The Natural condition
2.) The controlled condition
In this case, the controlled condition, the researcher is testing one person at a time as against testing with a group of people. This is to ensure that the researcher can adjust the conditions of the other experiment by studying just one person at a time.
A test subject i think but idk
Your answer is D, Lloyd George.