According to the passage, which of the following is CORRECT？A．Half of the tigers grow wild

According to the passage, which of the following is CORRECT？

A．Half of the tigers grow wild in India.

B．Tigers are no longer the national animal in South Korea.

C．Tigers become extinct in 18 countries during 100 years" time.

D．93 percent of tigers" former range remains for 100 years.

请帮忙给出正确答案和分析，谢谢！