The best explanation why the area between Spain and Gaul was not part of the Roman empire until that later period was a culmination from both undesireability and difficulty in accessing this region due to its mountaineous nature. So I would wager the answer being both C and D - undesireability and difficulty in access.
1) a .... i do not know the other ones sadly
I think it's the president xd
Since you provide no options, i assuming it would be : National spending
It's a total calculation of the amount of goods/services that being consumed by a nation within a specific period (usually calculated every year)
hope this helps
In 1770, Crispus Attucks<span>, a black man, became the first casualty of the American Revolution when he was shot and killed in what became known as the Boston Massacre. He later became a symbol of the Abolitionist movement.</span>