Final answer:
The power to conduct elections is a concurrent power, meaning that both the national and state governments have the responsibility to regulate and administer elections.
Step-by-step explanation:
The power to conduct elections is not a reserved power of the national government alone, nor is it reserved to the state governments alone. According to the information provided, elections are an example of a concurrent power, meaning that both the national and state governments share the responsibility. The Tenth Amendment to the U.S. Constitution establishes that powers not expressly given to the national government are reserved to the states, known as reserved powers. However, elections do fall under the jurisdiction of both levels of government, with specific requirements for holding office set by the U.S. Constitution being overseen at the national level, and the actual regulation and administration of elections being mostly handled by state governments. Hence, the correct answer to the student's question is that the power to conduct elections is a concurrent power (c).