单选题

　　[阅读判断]People living north of the mountain heard a loud boom that shook their windows， and airline pilots flying near the volcano soon afterwards described a thick black column of ash and steam shooting more than 2，100 meters into the sky.

　　Q： Pilots flying at the height of more than 2，100 meters saw a thick black column of ash and steam shooting up into the air from the crater.

　　A.True

　　B.False

　　C.Not Given