This photograph was taken at a demonstration in 1967:

A black and white photo shows a group of women standing behind a large banner that reads, Children are Not for Burning. Several women carry signs that read, Pennies for Headstart. Billions for Bombs.
© 2012 The Associated Press

Which of these was a long-term effect of events such as this that took place throughout 1960s?

Americans became more willing to question government decisions.
Government leaders refocused government policies to serve social needs.
Future wars suffered from low levels of public support.
Young people began voting at rates higher than other groups.