A sandwich shop sells a foot-long grinder for $8 and a calzone for $6. Which equation shows the relationship between the amount of each type of product sold and the total sales, in dollars?
A. 14(x + y) = z; x represents calzones sold; y represents grinders sold; z represents total sales
B. 6x + 8y = z; x represents calzones sold; y represents grinders sold; z represents total sales
C. 14(x + y) = z; x represents grinders sold; y represents calzones sold; z represents total sales
D. 6x + 8y = z; x represents grinders sold; y represents calzones sold; z represents total sales