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
正确答案：A
答案解析：答案选A。短文第一句就说到：当Nick着手用半导体合金创造一种新的可视照明设备的时候，同事们都认为他不现实。所以本句的论述是正确的。