Final answer:
The correct ending for the verb "destacar" in the "Yo" form in the Preterit Tense is "destaqué".
Step-by-step explanation:
The correct ending for the verb "destacar" in the "Yo" form (first-person singular) in the Preterit Tense is "destaqué".
For example, if you want to say "I stood out", you would say "Yo me destaqué" in Spanish.
It's important to remember that in the Preterit Tense, the verb endings for regular -ar verbs in the Yo form are: -é, -aste, -ó, -amos, -asteis, -aron.
Learn more about Conjugation of Spanish verbs