In the 670s how was the leadership of islam determined?

The correct answer is :  In the year 670 Mu'awiyah was governor of SIria, ill and his son Yazid, who was the son of his favorite spouse, was named as his successor. In 680 Mu'awiyah dies and many people do not agree with his successor, they consider him someone without mercy and for this he had to face many rebellions. Finally Yazid dies in one of these rebellions. He was succeeded by a sick son who also died shortly after.

.elections are held to determine who serves in congress.

the answer you are looking for is letter c. he supported the idea of a un-run war in serbia to bring peace to the area.

supporting this idea was an important step that bill clinton took in order to attempt to secure bosnia and keep the peace there. he led peace reconciliations -known as the dayton agreement- leaving bosnia as a single state made up of two parts with one central government.