48. Which powers exist when state and national governments share authority?

Answer: A

Explanation:

Concurrent powers exist when state and national governments share authority.

Concurrent powers are those that both state and national governments can exercise simultaneously. This includes powers such as the ability to tax, build roads, and create lower courts.

A) concurrent

This option is correct because concurrent powers explicitly refer to the authority shared by both state and national governments. This arrangement allows for a collaborative governance structure where both levels can operate in certain areas, enhancing the effectiveness of government functions.

B) expressed

Expressed powers are those specifically granted to the national government by the Constitution. These powers do not overlap with state powers, making this option incorrect in the context of shared authority between state and national governments.

C) implied

Implied powers are those that are not explicitly stated in the Constitution but are necessary to implement expressed powers. While they allow for flexibility in governance, they do not represent shared authority between state and national governments, thus making this option incorrect.

D) exclusive

Exclusive powers are those that only the national government can exercise, such as declaring war or regulating immigration. Since these powers are not shared with state governments, this option does not relate to the question of shared authority.

Conclusion

Concurrent powers are the only correct response as they directly define the shared authority between state and national governments. The other options—expressed, implied, and exclusive powers—fail to capture the essence of shared governance and instead pertain to distinct and separate powers assigned to either state or national levels.