How was the artist for the gates of paradise chosen

The correct answer is C

Explanation:

Artists competed for the opportunity to build The Gates of Paradise. The one who won and was chosen to do this was Lorenzo Ghiberti. The Gates of Paradise refers to the golden doors on the Baptistery of San Giovanni in Florence, where each panel on the door depicts a scene from the Old Testament

i think the answer could be either a or b because both are part of the post production part. hopefully this you a little.