An annuity that provides retirement income for employees of certain public schools and non-profit organizations is called:

The correct answer is 403(b). This type of annuity plan is designed specifically for employees of certain public schools, tax-exempt organizations, and certain ministries. It allows for pre-tax contributions, which can help employees save for retirement while deferring taxes on that income until it is withdrawn during retirement. This plan is particularly advantageous for educators and non-profit workers who might not have access to traditional employer-sponsored retirement plans like a 401(k).

The 403(b) plan is distinct in its operational framework and eligibility compared to other retirement plans. While a 401(k) plan is typically used by for-profit organizations and has different contribution limits and tax implications, and a 457 plan is usually available for state and local government employees and certain non-profit organizations, the 403(b) serves a specific niche. The 414(h) plan refers to a section of the Internal Revenue Code relating to governmental plans that allow for salary reduction when making contributions for retirement, but it doesn't operate as a standalone annuity.

Overall, the 403(b) is tailored to support the retirement savings needs of individuals working in certain public service roles, making it the most suitable answer in this context.