Final answer:
Leonardo da Vinci had a rivalry with Michelangelo during the Renaissance period, where both artists were competing for commissions and were significant figures in the Florentine art scene.
Step-by-step explanation:
Leonardo da Vinci, known for being a prominent figure in the Renaissance era and a master in various disciplines including painting, had a notable rivalry with Michelangelo. While there were certainly other artists at the time such as Raphael and Donatello who were creating remarkable works, it was Michelangelo who was working in the same period as Leonardo and competing for similar commissions, particularly in Florence where the two often crossed paths. Michelangelo, a celebrated Florentine artist renowned for his sculptures, paintings, and architectural designs, shared the same period with Leonardo da Vinci. Their rivalry was less about personal animosity and more a competition of artistic philosophies and the pursuit of grand patrons during the Renaissance period. The two artists pushed each other to excel, much in the same way Titian had rivalries with Tintoretto and Veronese. In the context given, the answer to the question "Who did Da Vinci have a rivalry with?" is b) Michelangelo.