In 1600s the planter class increasingly relied on African slaves for labor majorly because slaves were offering cheap labor now that the planters didn't have to pay for this form of labor. This led to most of them foregoing traditional indentured servants who would be paid for their labor and instead opted for African slaves.
Your answer should be B “In every stage of these oppressions We have petitioned for redress in the most humble terms. Our repeated petitions have been answered only by repeated injury”
Congress had to approve of military appointments. The War Powers Resolution was made so that the President of the United States could not commit to an armed conflict without the consent of the Congress.