What Accounted for the Uneasy Relations That Persisted Between Powhatan's

What accounted for the uneasy relations that persisted between Powhatan's people and the Jamestown settlers for more than a decade after 1607?

A) The constant turnover of the English population due to high death and immigration rates
B) Jamestown's colonists' persistent efforts to seize Indian land for new sugar plantations
C) Both groups' inability to reach an agreement about who would pay tribute to whom
D) English settlers' decision to trade hatchets and guns with the Indians for maize