A is wrong, that word would be Jihad not Hijrah.
B is correct.
C is wrong, conflicts were over who would be the successor after the prophet's death.
D is correct.
It would be B.) it just makes the most sense.
The Official name is QuanKeestador (from Portuguese or Spanish conquistadores "conquerors") Spanish pronunciation, Portuguese pronunciation is a term used to refer to the soldiers and explorers of the Spanish Empire or the Portuguese Empire in a general sense.
Google it we can't read ur handwriting