Answer:
The most appropriate answer option is B. groups fighting for equal rights and other causes felt that political parties were not meeting their needs.
Step-by-step explanation:
Right after John Kennedy was murdered in 1963, a huge number of people including supporters of different minority groups felt as if they were losing hopes.
So as a result of this, protests broke out with demands like ending the war in Vietnam, unfair treatment of black citizens as the groups fighting for equal rights and other causes felt that political parties were not meeting their needs.
Therefore, antiwar activists among others sought new ways to express their views to he government.