Final answer:
In the passé composé, the correct sentence is 'J'ai choisi.'
Step-by-step explanation:
In the passé composé, the verb 'choisir' is conjugated with the auxiliary verb 'avoir' and the past participle 'choisi'.
Therefore, the correct sentence in the passé composé would be: J'ai choisi.
Learn more about Passé composé conjugation of 'choisir' in French