Answer:
Field research.
Explanation:
Since the sociologist studied the learning capacity of toddlers by joining a preschool for six months, he has likely conducted a field research or a field study. Field research is the collection of raw data outside a laboratory or a library. It is a qualitative method of data collection that aims to observe, interact and understand people while they are in a natural environment. It focuses on capturing live experiences.
Answer:
These increased options led to a rise in advertising, as businesses competed for customers
Explanation:
I HOPE THIS HELPS!!!
Answer:
one of them would be the one that would probs be the best