Do anybody know the answer to this ?

a summer camp

Explanation:

this is because the term in loco parentis, Latin for "in the place of a parent" this refers to the legal responsibility of a person or organization to take on some of the functions and responsibilities of a parent, and a summer camp would be doing this because the parents aren't there to take care of the children so the cits would have to take care of the kids

the group i'm selecting: greeks.

a first group of greek immigrants came to the us in the 1850s. the second group came to america starting in the 1890s due to economic opportunities they didn't have back in their home caused by the hardships of ottoman rule. greek immigration was 90% male, many of them expected to work and return to greece after earning enough capital, but ultimately had to remain in the us after the greek genocide.

fairly positive it is 4