Answer:
D) Since European goods could not be easily imported during the war, more factories were built in the U.S. to supply Americans with the goods they demanded.
Step-by-step explanation:
We can affirm that in order to cope with the war effort, the US had to strengthen its industry and thus cease to be dependent on European imports in all the famines, as the military industry began, work began in metallurgical factories and Cannons and weapons were developed, then work in the paper and cotton industry. By the end of the war, the US had already developed a stable and developed industry that included war material, clothing and food.