Both the national and the state governments have the power to collect taxes and to borrow money. these are a good example of which of the following?
a. implied powers
b. reserved powers
c. enumerated powers
d. concurrent powers

concurrent powers

Explanation: Concurrent powers are powers that are shared by both the State and the federal government. These powers may be exercised simultaneously within the same territory and in relation to the same body of citizens.

i think the answer is c, rivers.

explanation:

sometimes, borders fall along natural boundaries like rivers or mountain ranges. for example, the boundary between france and spain follows the crest of the pyrenees mountains. for part of its length, the boundary between the united states and mexico follows a river called the rio grande. the borders of four countries divide africa’s lake chad: niger, chad, cameroon, and nigeria.

some american cities felt workers were being oppressed by business monopolies