C. enjoyed some access to opportunities to act as advisors
The answers is D, the expansion of the highway system.
Well countries typically allied with their neighbors because they usually had close relations like for instance Britain France and Belgium where all huddled together in west Europe while Germany was close to with Austria Hungary and both had good relations with the ottoman empire. because all of these countries were close together sometimes things got heated and with all of these alliances it was easy for all of these countries to fight each other.
The answer is B. I think.
