Which detail from "At School" supports the central idea that foreign-born children were not given enough meaningful support at school in the early 1900s?

They were simply placed in regular classes with much younger American-born children.
Instruction emphasized the three Rs, American history and geography, penmanship, and spelling.
Students stood at their desks as they performed physical fitness exercises every morning.
In some city schools, nearly all the students came from immigrant families.

Question

Which detail from "At School" supports the central idea that foreign-born children were not given enough meaningful support at school in the early 1900s?

They were simply placed in regular classes with much younger American-born children.
Instruction emphasized the three Rs, American history and geography, penmanship, and spelling.
Students stood at their desks as they performed physical fitness exercises every morning.
In some city schools, nearly all the students came from immigrant families.