Q. Which of the following are the exports from Bengal to Europe in 18th Century?

[A] Saltpetre, gold and silk

[B] Cotton, silk and indigo

[C] Cotton, gold and coffee

[D] Silk, rubber and gold

Answer: B
Notes:

Bengal, the richest province of the Mughal Empire included present day Bangladesh, and its Nawab had authority over the region constituting present day states of Bihar and Odisha.  

Exports from Bengal to Europe consisted of raw products such as saltpetre, rice, indigo, pepper, sugar, silk, cotton textiles, handicrafts, etc. 

Source: Spectrum Modern India.