Which of these indicated that the tang dynasty had lost the mandate of heaven?
military defeats, rebellions, and economic troubles
earthquakes, economic troubles, and isolationism
rebellions, mass migrations, and military dictators
crop failures, reduced exports, and weakened currency

MIlitary Defeats rebellions and economic troubles

i beleive a. is the only possible answer

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.