Students sold 400 tickets to the spring band concert. The students sold adult and child (under 12 years old) tickets. Each adult ticket was $5.00 and each child ticket was $2.00. The total amount of money earned from the sale of tickets was $1475. Please choose the correct set of equations.

A

{5x+2y=1475

{x+y=400

B

{5x+2y=400

{x+y=1475

C

{5x=4002

{x=1475

D

{x+2x=400

{y+5y=1475