Even though citizens have specific rights which the government may not take away, these rights may have certain limits. Which of these might be an example of these limits? A) Printing an ad that falsely accuses the mayor of being "a crook." B) Making a contribution to a group that calls for civil disobedience to the war. C) Joining in a demonstration to picket the legislature over a bill under consideration. D) Writing a letter to the editor calling the mayor a "hack" and "an embarrassment to the city."