Which classical Sanskrit poet and dramatist, widely considered the greatest writer in the language, authored the play 'Abhijnanashakuntalam' about the love story of King Dushyanta and Shakuntala?

• A Valmiki
• B Bhasa
• C Bhavabhuti
• D Kalidasa ✓

Kalidasa, who likely lived in the 4th or 5th century CE during the Gupta period, is Sanskrit's most celebrated poet and dramatist, known for works including Meghaduta and Kumarasambhava.