The weights of four boys are $45\rm{kg}$, $48\rm{kg}$, $52\rm{kg}$ and $53\rm{kg}$. Mason\textquotesingle s weight is an even number. Joshua\textquotesingle s weight is a multiple of $5$. Christopher is not the heaviest and Mateo is not the lightest. Who is the heaviest among the four boys? 
选项为:A:Mason  B:Joshua  C:Christopher  D:Mateo  E:Impossible to determine  请回答其中一个选项.