$$2012-AMC10A-16$$  Three runners start running simultaneously from the same point on a $$500-$$meter circular track. They each run clockwise around the course maintaining constant speeds of $$4.4$$, $$4.8$$, and $$5.0$$ meters per second. The runners stop once they are all together again somewhere on the circular course. How many seconds do the runners run?  三名跑者在一条 500 米的环形跑道上从同一点同时开始跑步。 他们每个人都绕着赛道顺时针运行，保持每秒 4.4、$$4.8$$ 和 5.0 米的恒定速度。 一旦他们再次聚集在圆形路线上的某个地方，跑步者就会停下来。 跑者跑多少秒？
选项为:A:$$1000$$  B:$$1250$$  C:$$2500$$  D:$$5000$$  E:$$10000$$  请回答其中一个选项.