Please help: A scenic train ride has one price for adults and one price for children. One family of two adults and two children pays $62 for the train ride. Another family of one adult and four children pays $70. Which system of linear equations can you use to find the price x for an adult and the price y for a child? A. 2x+2y=70 x+4y=62 B. X+y=62 x+y=70 C. 2x+2y=62 4x+y=70 D. 2x+2y=62 x+4y=70