With reference to the history of ancient India, Bhavabhuti, Hastimalla and Kshemeshvara were famous

1. Bhavabhuti was a renowned 8th-century Sanskrit poet and playwright, famous for works like 'Malatimadhava', 'Mahaviracharita', and 'Uttararamacharita'. 2. Hastimalla was a prominent 13th-century Kannada poet and playwright, associated with Jainism, known for plays like 'Vikrantha Kaurava'. 3. Kshemeshvara (or Kshemishvara) was a Sanskrit playwright, likely from the 10th or 11th century, known for the play 'Chandakaushika'. 4. Therefore, all three individuals mentioned were famous playwrights in the history of ancient India (extending into the early medieval period). 5. Options (A), (C), and (D) are incorrect as their primary fame does not derive from being Jain monks, temple architects, or philosophers, although their works might reflect philosophical ideas or religious affiliations (like Hastimalla's Jainism).