choose the correct conjugation for the given subject and verb. pierre/avoir\na. sont\nb. êtes\nc. suis\nd…

Brief Explanations:

In French, the verb "avoir" (to have) is conjugated as "a" for the third - person singular subject like "Pierre". "sont" is the third - person plural form of "être" (to be), "êtes" is the second - person plural form of "être", and "suis" is the first - person singular form of "être".

Answer:

D. a