The answer is d the lack of basic needs
Answer:
Speciality is a pursuit, area of study, or skill to which someone has devoted much time and effort and in which they are expert
The split into Sunni and Shia of the religion of Islam can traced back to the dispute over the question of Muhammad's successor. Thus, the answer is letter C. It was believed that the dispute emerged in 632 just after the death of the Prophet Muhammad.
They travelled great distances by sea.
