Who is the greatest basketball player of all time

Well we all have different people but for society its mostly claimed as, Michael Jordan or  LeBron James.

d.prevent the spread of communism outside of eastern europe.

yes based on alexanders actions he deserved the title of "the great". his empire covered about 3,000 miles and he was able to establish the empire over a 13 year period of time. he was able to conquer many different places. he also defeated the persians. he conquered egypt and developed a city and named it after himself.