Starting with some gold coins and some empty treasure chests, I tried to put $15$ gold coins in each treasure chest, but that left $$1$$ treasure chests empty. So instead I put $12$ gold coins in each treasure chest, but then I had $6$ gold coins left over. How many gold coins did I have? ( adapted from 2017 AMC8, Questions \#17) 
选项为:A:$$36$$  B:$$49$$  C:$$75$$  D:$$84$$  E:$$90$$  请回答其中一个选项.