Powers shared by the federal and state governments are called
a. delegated powers.
b. reserved powers.
c. concurrent powers.
d. denied powers

The answer is letter C.  

The powers that are both shared by the State and the Federal government are called concurrent powers. These powers include regulation of elections, tax rates, loans, and court establishments. They may be exercised simultaneously within the same territory in relation to the same body of citizens. Both the national and state governments exercise this power in relation to commercial activities. They may enforce laws themselves and choose their own leaders. An example of this is a decision made in a state’s Supreme Court that can also be appealed in the US Supreme court for federal questioning, in the case of the U.S. Constitution or national law.