What condition made the byzantines vulnerable to attack by muslim turks?
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a. the council of nicea
b. the death of constantine
congoing wars with the sasanian persians
d. invasions by huns and germanic peoples

Explanation:

The correct answer is C: Ongoing wars with the Sasanian Persians. I took the test so unless Pearson Realize is wrong...

the correct answer is ) possibility.

demonstrating opportunity cost is done through production possibility.

the opportunity cost can be demonstrated using the production possibility frontier or curve. this graphic shows the total number of possibilities for two products when we have the resources needed and used in an efficient manner. the main resources could be money, labor, and technology. the curve shows that the production of one good increases when the production of the othe