Answer:
Carlitos trajo el auricular a su mamá.
Step-by-step explanation:
The verb "trae" comes from the infinitive "traer". The preterite of the verb traer in the third person of the singular is "trajo". In English this phrase means: "Carlitos brought the handset to his mother". Traer is an irregular verb, that's why its different conjugations aren't formed with the common rules regular verbs have.