Which of the following sentences from the article BEST supports the main idea of the article?

3. Which of the following sentences from the article BEST supports the main idea of the article?
(A) The Thai army has banned the three-finger salute.
(B) The students were the latest accused of using the gesture of rebellion against tyranny from the movies.
(C) Frustrated by not being able to gather and demand a return to a democratic government, young protesters are using symbols of defiance.
(D) The Chinese government has also delayed the release of 'Mockingjay' in the country's theaters until next year, said the magazine Variety.
4. Which of the following is LEAST important to include in a summary of the article?
(A) A colonel with the Bangkok Metropolitan Police told reporters the three students arrested outside the theater were taken to an army camp for 'attitude adjustment.'
(B) Military officials took over the government on May 22 and imposed martial law, cutting back civil liberties and battling protests.
(C) Gatherings of five or more people have been banned since the military took over in May.
(D) Chinese authorities have been dealing with protesters demanding democratic reforms in Hong Kong for more than a month.