WHAT IS THE MAIN IDEA OF PARAGRAPH 2

37. What is the main idea of paragraph 2?A. Thailand is the most polluted country in AsiaB. Thailand's pollution index reads 201-300C. The haze reached a dangerous levelD. People living in Songkhla do a lot of reading.“This is a crisis,” said Halem Jemarican, head of the Southern Environment Office. He saidthe pollution index in southern Thailand has never exceeded 300 before.