The answer is: A. Ivan Pavlov
Pavlov was the researcher who first popularized the classical conditioning (where a certain conditioned response is created by associating a certain situation with a conditioned stimulus)
Counterconditioning was developed in order to reverse or reduce the effete of classical conditioning (usually carried out by enforcing positive reinforcement to the subjects)
Venetian explorer, Marco Polo, told his cellmate during his imprisonment after the Venetian-Genoese War about his travels to the Far East. These accounts became a book , later entitled "The Travels of Marco Polo" which was influential in sparking people's curiosity of the East.
The first impact was that Marco Polo was able to bring elements of Western culture to the East and Eastern culture back to the West. Because of his exploration Indonesia, Mongolia, Sri Lanka, and India, China began to experience Western culture.
Next, Marco Polo's interactions with Mongolian emperor Kublai Khan led to commercial exchange with Western merchants who were now arriving in China. This increased Chinese's growth as a civilization.
The Silk Road, an easier route to travel around the Gobi Desert, traced by the Polos had a huge effect in the future of European and Chinese interaction. It would prove to be a more effective route than to sail the oceans to China.
Answer: Castles could serve as a centre for local government, administration and justice. They were also used by powerful lords to display their wealth and power through lavish architectural styles and decoration.
Answer: (C) The placebo effect
Explanation:
The placebo effect is one of the type of treatment that is specifically designed for control all the therapeutic values and this effect is basically works on the various types of symptoms that is generated by our brain.
It includes the various types of procedures, inert injections and the tablets. The researcher utilized various types of placebo effect controlling system so that they can easily assess our memory.
According to the given question, the given situation is due to the placebo effect as they can easily determine the quantity of caffeine in the memory.
Therefore, Option (C) is correct.
