Which is the correct chronological order of following ' Acharyas?

• A. Shankara-Ramanuja- Madhav-Chaitanya
• B. Chaitanya-Ramanuja-Madhav-Shankara
• C. Ramanjua-Shankara-Chaitanya-Madhav
• D. Madhav-Chaitanya-Ramanuja-Shankara