Latin American culture is very diverse. This is the correct answer.
Judith Ortiz Cofer , the poet, wants to show the unity of Latinos. They have different customs but there is something universal in that diversity. This universality is in their collective roots. They will become one community in the "The Latin Deli: An Ars Poetica" was written in 1993.
These options are not right:
-the woman who runs the deli speaks many languages ( The woman is ,in fact , listening to different Latinos speak).
-people often come to the deli to complain ( The complaint made by the Puerto Ricans is just an example of the diversity the poet shows).
-people come to the deli to honor their mothers ( There is not any information about this)