Answer:
Jihad refers to a holy war against enemies of Islam.
and:
Caliphs were Muslim rulers who succeeded Muhammad.
and:
Jihad refers to a Muslim’s internal struggle to lead a good life.
there ya go.
50 is your correct answer
Salutations!
Where did Constantine locate the empire's new capital city ?
The Constantine built a new capital for the empire as Byzantium. Byzantium was retitle as Constantinople. Its now currently called as Istanbul.
Hope I helped :D