B) It was created by Renier in a style that seems classical.
Explanation:
Rainer of Huy is one of the preeminent artists of the Mosan Art, a regional style that emerged in Belgium in the 12th century. It's a Romanesque style in essence, but this metalwork - you didn't give any image of it, but if it's a Reiner's art, I believe it's his baptismal font - had a different style. This metalwork has a huge influence on the classical art style, especially Greek and Roman. This decision to create a classical art style departures this baptismal font from the traditional Romanesque ideas.