Challenges facing the american people during the late 20th and early 21st centuries

this is going to be a pretty long answer so buckle up your seat belt, i'm just gonna tell you the late 20s.

The 20th century was shaped by three fundamental challenges that arose in the  late 1960s and early 1970s. The first was a crisis of political leadership. Public cynicism toward politicians intensified, political party discipline declined, and lobbies and special interest groups grew in power.

The second challenge involved wrenching economic transformations. Economic growth slowed, productivity flagged, inflation soared, family income stagnated, and major industries faltered in the face of foreign competition.

The third challenge involved growing uncertainty over America's proper role in the world. A major challenge facing policymakers was how to preserve the nation's international prestige and influence in the face of mounting public opposition to direct overseas interventions.

what do you want me to answer?

sing because that is what they are doing in the sentence

explanation:

the simple predicate is the main verb in the predicate that tells what the subject does. example: my father fixed the dryer. read each sentence. draw a line under the complete predicate.