Gabe has $12y+9$ cans of coke. He takes one out with him every day for 5 consecutive days. On the fifth day, he also brings each of his $x$ friends a can of coke. How many cans of coke does he have left? 
选项为:A:$$12y + 9$$  B:$$7y + 9 -x$$  C:$$12y +4 -x$$  D:$$12y + 4 +x$$  请回答其中一个选项.