What different peoples contributed to the cultures of spain and portugal
it has to be five different peoples

Ancient Rome, Pre-Roman Celtic, Iberian, Phoenicians, and the Mores are the 5 different peoples who contributed to the cultures of Spain and Portugal. They contributed in the religion and languages, music and arts and literature of both countries’ cultures.
It was the Celtic and Iberian who influenced the architecture designs of Spain and Portugal.
Some of their cuisine derives from Romans and Jewish traditions.
Spain and Portugal gives so much importance to their film, cinema, theater and literature at the same time to their music.

Dall of the above all of the choices make sense