Where did the term Dada come from, and what does it mean?

  Dada is a movement in art and literature based on deliberate irrationality and negation of traditional artistic values also, the art and literature produced by this movement.

Or it could be a baby saying "dada" as dad, haha. You never know!!! :)

what are the choices.

renascimento comercial, que, a partir do século 11, inaugurou definitivamente a baixa idade média, que se estenderia até o século 15.