Fa-Hien was

The correct answer is A.

Fa-Hien was a Chinese Buddhist monk who traveled to India in the 5th century CE to study Buddhist texts. He is considered to be the first Chinese pilgrim to visit India. He returned to China in 414 CE with a large collection of

B is incorrect because Christopher Columbus discovered Puerto Rico and Jamaica in 1493.

C is incorrect because the first Buddhist pilgrim from India to visit China was Kashyapa Matanga, who traveled to China in 67 CE.

D is incorrect because Fa-Hien was a Buddhist monk, not a discoverer.