one of the options below is not the source of income for non- profit organization

The option that is not a source of income for a non-profit organization is "ordinary shares." Non-profit organizations are established to serve a particular purpose or mission, such as social welfare, charity, education, religion, or scientific research. These organizations operate on a non-profit basis, which means that their primary objective is not to generate profits for their owners or shareholders, but to fulfill their mission and provide benefits to the community they serve. Non-profit organizations rely on various sources of income to support their operations and programs. Some of the common sources of income for non-profit organizations include entrance fees, subscription/dues, and donations. Entrance fees and subscription/dues are fees charged to members of the organization or the public for the privilege of accessing the organization's services, programs, or events. Donations, on the other hand, are voluntary contributions made by individuals, foundations, corporations, or government agencies to support the organization's mission and activities. However, ordinary shares are not a source of income for non-profit organizations because non-profit organizations do not issue shares or have shareholders. Ordinary shares represent ownership in a for-profit corporation, and the dividends paid on those shares are a return on investment to the shareholders. Since non-profit organizations are not established for the purpose of generating profits for their owners or shareholders, they do not issue shares or distribute dividends.