Which best describes the relationship between the arab muslims and the byzantine empire? a. the empire was regularly attacked by arab muslims. b. the empire was occasionally attacked by arab muslims. c. the empire regularly attacked arab muslims. d. the empire occasionally attacked arab muslims.

The answer is A."The empire was regularly attacked by Arab Muslims"

Explanation:

i think the answer is c, rivers.

explanation:

sometimes, borders fall along natural boundaries like rivers or mountain ranges. for example, the boundary between france and spain follows the crest of the pyrenees mountains. for part of its length, the boundary between the united states and mexico follows a river called the rio grande. the borders of four countries divide africa’s lake chad: niger, chad, cameroon, and nigeria.

ok so u have2 basically