The traffic lights at three different road crossings change after every 48 sec., 72 sec. and 108 sec., respectively. If they all change simultaneously at $$8 : 20 : 00$$ hours, then at what time will they again change simultaneously ?

A

$$8 : 20 : 08$$ hrs

B

$$8 : 24 : 10$$ hrs

C

$$8 : 27 : 12$$ hrs

D

$$8 : 30 : 15$$ hrs