The best explanation for why the byzantine empire could not expand Christianity to the east and the south is that... A. nomadic mongols threaten invasion
B. the Islamic caliphate blocked expansion
C. Visigoths claimed areas to the east and south Constantinople
D. trade along the silk Rode would have been harmed by missionary activity

What is the significance of the battle of saratoga? a. the defeat at saratoga allowed the british to invade new england by land. b. after the defeat at saratoga france refuse to sign a treaty with the united states. c. the british won a decisive victory at saratoga. d. after the victory at saratoga france gave open support to the united states including arms money and ships.