There are four more girls than boys in Ms. Raub\textquotesingle s class of 28 students. What is the ratio of number of girls to the number of boys in her class? (2014 AMC 8, Question 7) 
选项为:A:$3:4$  B:$4:3$  C:$3:2$  D:$7:4$  E:$2:1$  请回答其中一个选项.