The correct answer is: C. Tavernier.
Jean-Baptiste Tavernier (1605-1689) was a French jeweller and traveller who visited India several times during the Mughal period. He left detailed descriptions of his travels, including a description of the Peacock Throne.
The Peacock Throne was a jewel-encrusted throne that was commissioned by Shah Jahan, the fifth Mughal emperor. It was made of gold and silver, and was inlaid with precious stones, including rubies, emeralds, and diamonds. The throne was destroyed by Nadir Shah, the Persian emperor, in 1739.
Geronimo Verroneo was an Italian Jesuit who visited India in the early 16th century. He wrote a book about his travels, but he did not mention the Peacock Throne.
Omrah’ Danishmand khan was a Mughal nobleman who served under Shah Jahan. He did not leave any written accounts of his travels.
Austinof Bordeaux was a French traveller who visited India in the early 17th century. He did not mention the Peacock Throne in his writings.