Which aspect of the Department of Education's mandate best justifies the pressure the Department has put on the states to adopt the national Common Core Curriculum?
providing students with equal access to educational opportunities
talsing national awareness about the challenges in education
providing a leadership role in American education
disseminating the latest information on what works in teaching

providing students with equal access to educational opportunities

Explanation:

The national Common Core Curriculum are sets of academic standards in English language and Mathematics that is supposed to map out what a student is supposed to learn from his early school year to his intermediate years and should prepare the students for jobs when they are done with school.

The pressure from the Department of Education to states to adopt the national Common Core Curriculum made them provide students with equal access to educational opportunities.

the conditions that made the byzantine empire vulnerable to attacks by the muslin turks were the sack of constantinople by western crusaders, the conquests of the sultanate of rum, presence of rival kingdoms and finally the set up of fiefdoms at the empire which were owned by the ghazis (turkish warriors).

the government closely monitored its finances to avoid another financial collapse.