The correct conjugation for the verb "pedir" in the preterite form is:
- Yo pedí
- Tú pediste
- Ellos pidieron
- Nosotros pedimos
So the options given contain incorrect forms. Specifically, "Tu pidistes" should be "Tú pediste" and "Nosotros pedimo" should be "Nosotros pedimos."
Thus, "Correcto" is the answer for "Yo pedí," but the other options are "Incorrecto."