A bag of toffee is $5$ dollars, a bag of cotton candy is $3$ dollars, and a bag of orange candy is $12$ dollars. Now, the candy shop decides to mix $25$ bags of toffee, $60$ bags of cotton candy, and $15$ bags of orange candy for $100$ bags of assorted candy. What should be the price of the assorted candy in dollars to keep the total revenue unchanged? 
选项为:A:$$3$$  B:$$3.5$$  C:$$4$$  D:$$4.85$$  E:$$5$$  请回答其中一个选项.