The salesperson appears to have made effective use of <u>b. foot-in-the-door phenomenon</u>.
<u>Explanation</u>:
Foot-in-the-door phenomenon is a tactics used by many of the salesperson to sell their products. Under this technique, they make a customer to agree the large request by making them agree to their small request first.
Foot-in-the-door phenomenon was discovered by the psychologists Jonathan Freedman and Scott Fraser, when they met pedestrian salesmen at their heyday.
In the above scenario, the salesman visits my house and gave some free sample of cleaning liquid to try. He returns back in a week and requests to buy expensive cleaning products. This shows that the salesperson is following foot-in-the-door phenomenon.
Geographic isolation could be caused by a number of environmental factors. If a population of people or species live on an island, amongst mountains, in difficult to navigate terrain, or deep into rainforest or forests generally these groups could experience geographic isolation. Geographic largely occurs if a population or group of people or animals live in a remote region of the world that has little access to others due to any number of geographic features.
The answer to the question above is letter D. 25 pounds is the closest sugar average yearly consumption per person in the United States. American ate 123 pound of sugar per year in 1970, Today the average consumption is 152 pounds of sugar in one year.
They were all "Founding Fathers"., if that answers your question because it was kind of unclear.
