The plague beak masks were made with solid leather. Plague doctors believed that the<span> mask filled with aromatic items could protect them from putrid air, but that actually turned out to be </span>the cause of infection (proved by <span>miasmatic theory of disease developed later).</span>
I think the answer you want is c
Leonardo da Vinci was the only artist not involved in the creation of Saint Peter's Basilica and the Vatican out of those four.
To paint everyday life. "short answer"
