Sara has 16 blue marbles. She can trade marbles in two ways: 3 blue marbles for 1 red marble, and 2 red marbles for 5 green marbles. What is the maximum number of green marbles she can get? (2019 Math Kangaroo Problem, Level 3-4, Question \#13) 
选项为:A:$$5$$  B:$$10$$  C:$$13$$  D:$$15$$  E:$$20$$  请回答其中一个选项.