What circumstance limiting freedom of speech is reflected in this timeline?
1914: World War I begins.
1917: Charles Schenck distributes pamphlets encouraging U. S. men to
resist serving in the military.
1919: The Supreme Court rules that Schenck's action is not protected
because it poses a "clear and present danger" to safety.
A. Falsehoods and other slanderous speech can be restricted.
B. Speech that advertises illegal products can be limited.
C. In times of war, free speech may be more limited than in times of
peace.
D. The government can restrict obscene speech in the public interest.

In times of war, free speech may be more limited than in times of peace

Explanation:

The case Schenck v. United States was a case ruled by the US Supreme Court in 1917. During that period, after the US entered WWI the Congress passed the Espionage Act of 1917, which had the goal to prohibit interference with military operations or recruitment, preventing insubordination in the military and preventing the support of hostile enemies during wartime.

In this case, the US Supreme Court decided that the Espionage Act did not violate the First Amendment because it was an appropriate exercise of Congress during wartime. The court also said that the government has greater deference during wartime and in this period even constitutional rights are at stake.

c is the answer for this