C 
One ticket to a mini concert costs $\textbackslash$20$ at full price. Nicole buys $4$ tickets using a coupon that gives her a $25\textbackslash\%$ discount. Bel buys $5$ tickets using a coupon that gives her a $30\textbackslash\%$ discount. How many more dollars does Bel pay than Nicole? 
Options:
* $$2$$ 
* $$5$$ 
* $$10$$ 
* $$15$$ 
* $$20$$ 