Which year was the “Year of Deputation” when delegates from different countries came to enter into Islam?

(A) 8th Hijrah
(B) 9th Hijrah
(C) 10th Hijrah
(D) 11th Hijrah

The answer is: (B) 9th Hijrah
The ninth year of Hijrah is known as the “Year of Deputation” when delegates from different countries came to enter into Islam.