Answer - D - Sacra conversazione is the correct term for an altarpiece in which the Madonna and Child are joined by saints and with them, are engaged in a "holy conversation."
Key Takeaway: In art, the sacred conversation, known as sacra conversazione in Italian, refers to the High Renaissance trend of placing the infant Jesus and the Virgin Mary in amid a group of saints in an informal, conversational grouping, insinuating that they are having a "holy conversation." This form developed in Italy during the Renaissance and replaced earlier trends in which figures only tended to appear in their own personal spaces.