The correct answer to this open question is the following.
What caused trouble between Virginia’s farmers and Native Americans was that Virginia colonists that were farmers took over more land to grow crops, mainly tobacco, and other colonists wanted to push their settlements forward in territories that Native American Indians considered of their property.
When Virginia Colonists Jhon Rolfe had success planting tobacco seeds from the Caribbean island of Trinidad, tobacco became the king of crops in the colony of Virginia and farmers needed more land to grow more tobacco.
C. to protect soldiers when they attacked trenches
That would be Phillis Wheatley who published a book of poems :)
It would be school because machine produce things so do farms and railways transport production so school would be correct
