Eddie, Joe and Ken measured the height of a building using different methods. They got $\frac{81}{4}$ meters, $20.142857$ meters, and $20\frac{1}{10}$ meters, respectively. Order their results from least to greatest (using their names). 
选项为:A:Eddie, Joe, Ken  B:Joe, Ken, Eddie  C:Ken, Joe, Eddie  D:Eddie, Ken, Joe  请回答其中一个选项.