During William Henry Harrison's Governorship of the Indiana Territory

During William Henry Harrison's governorship of the Indiana Territory,

A) violence between the United States and Indian tribes declined.
B) he refused to sign new treaties with Indian tribes.
C) all Indian tribes were driven west of the Mississippi River.
D) he used threats and bribery as a means to acquire Indian lands.
E) he thwarted plans by Indian tribes to elect a separate Indian governor of the territory.