【正确答案】 C

【答案解析】[听力原文]
   Thousands of people living in villages closest to the volcano have already been moved to emergency shelters. Many more are lining up by the side of the road waiting for trucks to take them to safety. But still there are a few farmers refusing to move. Without their crops and animals they have no income and cannot support their families so they're waiting until the government offers financial help. Meanwhile, the mountain above them is becoming more active by the day. At least one village about three kilometers from the volcano has been covered in a dusting of volcanic ash. One scientist told the BBC he now believed Merapi was in what he called the early stages of a blowout but he added "we cannot predict when it will reach its peak".
   Why do some farmers refuse to move to emergency shelters?
新闻中提到有一些人考虑到灾后的生计问题而拒绝离开，希望政府能在此之前给他们一些经济支持(until the government offers financial help)。所以选C项。A项“等待卡车将他们送到安全的地方”是火山爆发前另外一些人的做法。B项“他们想一睹火山爆发的奇观”和D项“他们认为火山灰有利于作物生长”均没有在新闻中提到。