In the early part of the 21st century, public opinion polls showed that a majority of Americans believe that it should be illegal to burn the American flag. As a result, many members of Congress introduced amendments to make it illegal to burn American flags. However, these efforts have been unsuccessful. Which of the following statements best explains why these efforts have been unsuccessful?

a. The Supreme court declared it unconstitutional
b. The framers made the amendment process difficult in order to protect individual rights
c. The framers wrote the amendment process to prevent it from limiting freedom of expression
d. People refuse to sign it