The correct answer is option 4, Chandra Gupta II. Kalidasa, the famous poet, lived in the court of Chandra Gupta II. Chandra Gupta II, also known as Vikramaditya, was an influential ruler of the Gupta Empire in ancient India. He was known for his patronage of arts and literature, and his court attracted many scholars, poets, and artists. Kalidasa was one of the most prominent poets of his time and is considered a master of Sanskrit literature. He wrote several famous works, including plays like "Shakuntala" and epic poems like "Raghuvamsa" and "Kumarasambhava." His association with Chandra Gupta II`s court allowed him to flourish and create some of his most celebrated works.