He participated in a public protest. The first one never happened and the last option is far-fetched as Martin wasn't a criminal, he simply stated opinions. he was taken into custody with many other marchers during the protest.
Answer:
Famous chess players could be one of them
As part of Stalin's Five-Year Plan, the government set up a D) command economy, in which the government owned all industries, setting quotas favoring heavy industry over production of consumer goods.
the answer to your question is false