I believe the answer is letter D - Cutting taxes on wealthy Americans will help businesses grow. Trickle-down economics or trickle-down theory is a term applied in politics to match economic policies observed to benefit the wealthy and later "trickle-down" to the average and lower classes. Other set of choices has these as their answer - Reducing taxes on wealthy Americans will also benefit the poor. Cutting taxes on businesses will encourage them to hire more workers.