A discount store is selling 5 small tables with 8 chairs for $115. Three tables with 5 chairs cost $70. Which system of linear equations could be used to find the cost of each table (x) and the cost of each chair (y)?
A: 3x + 8y = $70; 8x + 3y = $115
B: 5x + 8y = $115; 3x + 5y = $70
C: 5x + 8y = $115; 2x − 5y = $70
D: 8x + 5y = $115; 5x + 3y = $70