The american government is a federal system. this means that: o a. citizens elect representatives to vote rather than voting directly. o b. the legislative branch consists of an upper and a lower house. o c. the federal government is divided into three branches. o d. powers are shared between state and federal governments.

D. Powers are shared between state and federal government

A federal system means that there is shared power between the national (federal) government and a smaller, subsection of the country as a whole. In the case of the United States, the subsection are the states.

d is the best answer for this question.

explanation:

a trial judge has broad powers in his courtroom. the judge's decision is usually final for the duration of the trial, and the party's one special type of witness is an expert witness.