“. . . our kings of Zhou treated the people well . . . and presided over (led) services to spirits and to Heaven. Heaven therefore instructed the Zhou kings. . . and gave them the decree (right) to rule. —Book of History
Based on this quote, why did Heaven give the Zhou kings the Mandate of Heaven? (1 point)
A. because they helped people could lead a good life
B. because they sacrificed to the spirits
C. because they devoted riches to Heaven
D. because they instructed the people