单选题

　　[阅读判断]When Nick Holonyak set out to create a new kind of visible lighting using semiconductor alloys， his colleagues thought he was unrealistic. Today， his discovery of light-emitting diodes， or LEDs， are used in everything from DVDs to alarm clocks to airports.

　　Q： Holonyak‘s colleagues thought he would fail in his research on LEDs at the time when he started it.

　　A、True

　　B、False

　　C、Not Given