Answer:
The Roman Roads, which extended all over the Roman Empire, and were built as the Empire expanded, helped the military expansion of the Roman Republic simply because they made logistics easier: military goods such as weapons, horses, and the soldiers themselves, could move around more quickly, making invasions of foreign territories more rapid, and allowing for a faster replenishment of troops in needed cases.
I he best answer is 3 I am 87 percent sure
<em> </em>I think it´s gross domestic product, but I´m not sure
