Mrs. Douglas packs candy bars into boxes for the members of the school band to sell as a fundraiser. Each candy bar weighs 5.75 ounces, and the empty box weighs 2.95 ounces. If the algebraic rule y = 5.75x + 2.95 represents the total weight of the packed box, what does the variable x represent?
a. Weight of each candy bar inside a box
b. Total weight of a box filled with candy bars
c. Total number of boxes filled with candy bars
d. Number of candy bars packed into a box