Witek has $$(28 - 10) \div 2 = 9$$ zloty, so Tadek has $$9 + 7 = 16$$ zloty. 
Tadek has $$7$$ zloty (unit of money) more than Witek. Witek has $$10$$ zloty less than Karol. Witek and Karol have $$28$$ zloty together. How much money does Tadek have? 
Options:
A: $$4$$ 
B: $$5$$ 
C: $$10$$ 
D: $$16$$ 
E: $$9$$ 