Which statement best describes the design of the federal government? A.
Its powers are divided among three branches.
B.
Its legislature reviews the constitutionality of laws.
C.
Its courts execute the laws.
D.
Its powers are established by the president.

the answer is A.

Explanation: because the federal government has three branches Legislative, executive, and judicial.

the correct answer is the following is a list of inventions made in the medieval islamic world, especially during the "islamic golden age" (8th to 13th centuries),[1][2] as well as the late medieval period, especially in the emirate of granada and the ottoman empire.

science and technology in the islamic world adopted and preserved knowledge and technologies from contemporary and earlier civilizations, including persia, india, china, and greece-roman antiquity, while making a number of improvements and innovations.