Mega Movies hosted a film premiere on Friday night. They charged $7 for adults and $4 for children. One hundred nine adults and children attended, and $703 was made in ticket sales. How many children and how many adults went to the film premiere?
 A. 
20 children; 89 adults
 B. 
17 children; 92 adults
 C. 
24 children; 85 adults
 D. 
14 children; 95 adults