In the early industrial revolution, most factories were built a roads b water sources c forests d the western border

B water sources--the water sources provided power to the mills for early factories. 

Early factories need a power source and water was cheap and accessible. Building next to flowing water sources moved the water wheels and provided power to the machines in the early factories. Electricity would later allow factories to move away from water sources. 

The coast of north america , basically yes newfoundland , i would say c , good luck

Ibelieve it is a. happy happy