Explain three ways the inca system of roads streathened the empire

Hello

1.) The roads provided quick and reliable routes for the military who could get to trouble spots quickly and thus maintain law and order.
2.) The roads made travel easy for civilians thus enhancing economic activities.
3.) The roads made possible, fairly fast communication to virtually every part of the Inca empire. The Inca road system of Peru was the most extensive, traversing the Andes mountains and reaching heights of over 5000m above sea level and covered approximately 22,530km.

Hope this helps
Plz mark me as brainist

The correct answer is "  it was believed that the dispute emerged in 632 just after the death of the prophet muhammad."