There were 600 people at a play. The admission price was $3 for adults and $1 for children. The admission receipts were $1,160.
How many adults and how many children attended? Use the elimination method.
A. 290 adults and 310 children
B. 160 adults and 440 children
C. 320 adults and 280 children
D. 280 adults and 320 children