In this question, one certainty is that the opening sentence will neither be in position 1 nor in position 4 because the given sentence is neither introductory nor concluding. It fits well in either position 2 or 3. The sentence states: "When people socially learn from each other, they often learn without understanding why what they’re copying—the beliefs and behaviors and technologies and know-how—works." It goes on to mention, "They tend to home in on who seems to be the smartest or most successful." This implies that people often learn without understanding why or what they are copying, and they tend to focus on those who appear to be the smartest. Position 2 is a better fit than position 3.
Anil could not go to his friend's party, as he had fever and was .
The students' picnic plans when it started raining heavily in the morning.
In his address to the candidates contesting the student council elections, the Principal said, “If you want others to take you seriously then you must ……………. on issues like gender bias and inclusivity.”
The outbreak of COVID-19 resulted in a health crisis and a drop in economic activity that were without ……….. in history. While containing and ………. the spread of the virus was the first priority of public authorities, reducing the …………… of the disease and limiting the pressure on healthcare systems were also considered equally important.