In a federal system of government, power is A. divided between the national government and the states.
B. held by one person who makes all the decisions.
C. held by a central government that makes decisions.
D. divided equally between all state governments.
NEED ASAP

Francine, a college freshman, has agreed to participate in a psychology research study. before she begins her participation, she reads a statement written by the researcher explaining the purpose of the research and the potential risks of participation. it also explains that francine is free to withdraw from the research at any time. in providing francine with this statement, the researcher has followed the ethical guidelines of for participants.