Correct Option (B)
The correct chronological sequence of the visits of these persons to India is 3, 1, 4, 2.
- Megasthanese (3): A Greek ambassador, he visited India in the 3rd century BCE during the reign of Chandragupta Maurya. His work 'Indica' provides insights into Mauryan India.
- Fa-Hien (1): A Chinese Buddhist monk, he traveled to India in the early 5th century CE during the reign of Chandragupta II (Vikramaditya) of the Gupta dynasty. He sought Buddhist scriptures.
- Hieun-Tsang (4): Another Chinese Buddhist pilgrim, he visited India in the 7th century CE, primarily during the reign of Harshavardhana. He extensively documented his travels and observations.
- I-Tsing (2): A Chinese Buddhist traveler, he arrived in India in the late 7th century CE. He spent significant time at Nalanda and translated numerous Buddhist texts into Chinese.
Incorrect Options
Options A (3, 1, 2, 4), C (1, 3, 2, 4), and D (1, 3, 4, 2) present sequences that do not correspond to the historically established chronological order of these visitors' travels to India. Megasthanese's visit predates all others by several centuries, while Fa-Hien's visit precedes those of Hieun-Tsang and I-Tsing.