I think that the anwser is C hope this helps
        
                    
             
        
        
        
Well from research and me living in Norte Dame we all call it the <span>archivolts from all the pictures and the meanings of them</span>
        
                    
             
        
        
        
Answer:
It continued a convention of medieval artworks, which was to communicate religious ideas.
Explanation:
This altarpiece allowed the pilgrims to respect Saint Antun. These opened inner wings represent the Saint Antun, the place of honour at the centre of the corpus and at his side a pig is portrayed.