ParentCo's Separate Taxable Income Was $100,000,and SubCo's Was $40,000

ParentCo's separate taxable income was $100,000,and SubCo's was $40,000.Consolidated taxable income before contributions was $125,000.Charitable contributions made by the affiliated group included $20,000 by ParentCo and $30,000 by SubCo.Compute the group's maximum charitable contribution deduction.

A) $12,500.
B) $20,000.
C) $30,000.
D) $50,000.
E) Some other amount.