The correct answer is: B. Zain-ul-Abidin
Zain-ul-Abidin was the sixth Sultan of the Shah Mir dynasty of Kashmir. He ruled from 1420 to 1470 CE. He is considered to be one of the greatest rulers of Kashmir. He was a patron of art, literature, and music. He also introduced the carpet industry into the Kashmir valley.
Akbar was the third Mughal emperor. He ruled from 1556 to 1605 CE. He was a great conqueror and administrator. He also patronized art, literature, and music. However, he did not introduce the carpet industry into the Kashmir valley.
Raja Kirpal Pal was a Hindu ruler of the Shahi dynasty of Kashmir. He ruled from 1003 to 1028 CE. He was a great patron of art and literature. However, he did not introduce the carpet industry into the Kashmir valley.
Devidasa was a Hindu saint and poet. He lived in the 16th century CE. He is not known to have introduced the carpet industry into the Kashmir valley.
Therefore, the correct answer is: B. Zain-ul-Abidin