According to the passage, what "national virtue" did Spencer criticize during his banquet speech?

The correct choice relates to Spencer's criticism of U.S. residents' tendency to spend a significant amount of time focused on pursuing a livelihood. In his speech, he likely expressed concern that this preoccupation with work and economic success detracted from other aspects of life, such as personal development, community engagement, or appreciation of culture. By highlighting this point, Spencer may have been advocating for a balance between the pursuit of financial stability and the cultivation of other virtues that contribute to a well-rounded and fulfilling life, ultimately questioning the value placed on work in American culture. This perspective speaks to a broader critique of how a work-centered mindset can overshadow the importance of social and cultural pursuits, reflecting a nuanced understanding of national values.