Explain the makeup of the country of Israel and
how its citizens have influenced the country.

b: the establishment clause  

b: socialism  

to act quickly in times of danger to the united states

because you have to act quickly if you want to live/survive.

letter a is the answer

the exodus of these people from constantinople contributed to the revival of greek and roman studies, which led to the development of the renaissance in humanism and science. byzantine emigrants also brought to western europe the better preserved and accumulated knowledge of their own greek civilization