That statement is true
Due to the massive panic that created during the shooting, you probably wouldn't know the exact position of the shooter or if there are more than one shooters that roaming.
Answer:
Intergenerational mobility.
Explanation:
Intergenerational mobility refers to the changes in social status between different generations within the same family, this type of mobility permits new generations to have better opportunities than the ones that their ancestors had and change their social status.
In this example Carlos' grandfather was an agricultural worker, Carlos' father worked as a clerk and because of their efforts, Carlos' is now able to graduate from college and medical school. We can see how Carlos' family has gone through changes in social status thanks to the efforts and opportunities they created.
Thus, this is an example of intergenerational mobility.
The increase of trade and transportation of animals or people.
The answer to your question is A
