The correct answer is D.
President Hoover (1931-1933) introduced certain measures aiming to boost the economy after the crash, during the initial recession years. His policies were based on austerity purpouses.
He encouraged business owners to prevent wage cuts or staff reductions, in order to stop the fall of production and income levels. He also raised taxes aiming to restore the balance of the national budget. These measures were unsucessful, and only at the end of his presidency he switched and started to implement programs of relief based on increasing public expenditures.