The Primary Cause for Continuing Conflicts Between English Colonists and Native

The primary cause for continuing conflicts between English colonists and Native Americans in Virginia was the

A) English murder of Nemattanew, a Powhatan war captain and religious prophet.
B) organization of Chesapeake tribes by the proud and talented leader Opechancanough.
C) steady encroachment by land-hungry settlers on Indian territories.
D) refusal of Powhatan to allow his daughter Pocahontas to marry planter John Rolfe.