Calla and Quory decide their business should help the community where they are located, but cannot afford

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Question:

Calla and Quory decide their business should help the community where they are located, but cannot afford to donate meaningfully to all the local charities. So they decide to do some research to determine which charity is the most worthy of their support. They decide to support Charity Wealth when they learn that every dollar CW spends helps 5 people. In comparison, the most that other local charities help per dollar is 1 or 2 people. Which ethical theory most closely supports Calla and Quory's decision decision to support Charity Wealth?Explain