The correct option is D Diwan-e-Khas
Shahjahan was the grandson of Akbar. Both were great patrons of architecture. Shah Jahan's reign saw monuments like the Red Fort, Moti masjid, Diwan-e-Aam, Diwan-e-Khas, Rangmahal, Khasmahal, and Taj Mahal. Akbar commissioned the construction of Ibadat-Khana.