In this reagan quote, the "wall" to which the president refers is located in the city of

very positive impact on our industries in the west, sine they promoted settlement and increased the ways in which goods could be transported to market.  

i think the answer is   b.

the romans were initially interested in expansion via sicily (which at that time was a cultural melting pot), part of which lay under carthaginian control. at the start of the first punic war (264-241 bc), carthage was the dominant power of the western mediterranean, with an extensive maritime empire