Answer:
the growth of cities.
Explanation:
I don't know the choices.
B I’m 90% sure is the answer
The significant increase in consumer demand following World War II marked the beginning of the marketing concept era. The correct option among all the options given in the question is the second option. With the start of marketing of products, the competition also increased. People were faced with multiple choices for getting a single type of product manufactured by different organizations.
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