Answer: (d) Congress was unable to deal with threats from foreign powers.
Explanation: Just took the test :)
It was : B-refining oil Back then, standard oil managed to gain monopoly within the oil industry by buying all of the existing rival refineries and united it under the standard oil brand. This allow them to dominate the whole oil product that distributed in united states
They had a new general and created an ambush. Hope I helped :)
