Abound Company has two support departments (S1 and S2) and two producing departments (X and Y). Department S1 serves Departments S2, X, and Y in the following percentages, respectively: 10%, 35%, 55%. Department S2 serves Departments S1, X, and Y in the following percentages, respectively: 6%, 50%, and 44%. Direct department costs for S1, S2, X, and Y are $15,000, $8,000, $105,000, and $97,500, respectively. What are the total costs to be allocated from Department S1?

a.$800

b.$9,500

c.$15,000

d.$15,573