The answer is D
Explained: After his victory in North Africa, Montgomery was recalled to England to serve under General Dwight Eisenhower, the Supreme Allied Commander. He commanded all Allied Ground troops during the D-Day invasion in June 1944.
No, it would not be considered credible. The author is a 9th grader doing this for a school project and has no degree or expertise in the topic outside school curriculum.
A synergy between iron and steel, railroads and coal developed at the beginning of the Second Industrial Revolution. Railroads allowed cheap transportation of materials and products, which in turn led to cheap rails to build more roads. Railroads also benefited from cheap coal for their steam locomotives.
