In Schenck v$.$ United States $(1919),$ the Supreme Court ruled that

Select one:

a$.$ the Espionage Act was unconstitutional.

b$.$ speech could be restricted when the nation's security is at stake.

C$.$ speech unrelated to national security can never be restricted.

d$.$ speech by unpopular groups can be restricted more than speech by popular groups.

e$.$ all forms of political dissent are constitutional.