The speed of high-speed train is approximately $$350$$ kilometers per hour, while the walking speed of a person is approximately $$5$$ meters per second.  Approximately, how many times is the speed of a high-speed train faster than the walking speed of a person?． 
选项为:A:$$2 $$  B:$$20 $$  C:$$70 $$  D:$$200 $$  E:$$700$$  请回答其中一个选项.