Maria martinez and her sister, christina, are planning to operate a small day care center together. maria originally invested $24,000 in the business, and christina invested $8,000. maria and christina decide to divide all of the profits and share all of the losses using a fixed ratio. if the ratio agreed upon is in proportion to their original investment, what would be christina's share of a $60,000 end-of-year profit? (hint: the original total investment was $32,000, which includes $8,000 from christina and $24,000 from maria. christina's $8,000 is one-fourth, or 25 percent, of the total.) a. $10,000 b. $30,000 c. $25,000 d. $15,000