Correct Option: A

benefactor (Noun) : a person who gives money or other help to a person or an organisation such as a school or charity
philanthropist (Noun) : a rich person who helps the poor and those in need, especially by giving money
beneficiary (Noun) : a person who gains as result of something
matron (Noun) : a woman who works as a senior nurse in– charge in a hospital
sponsor (Noun) : God parent; a person or company that pays for a radio, television programme, a concert, a sporting event, etc. usually in return for advertising