Keogh plans are also known as:

Keogh plans, established under the Internal Revenue Code, are retirement plans for self-employed individuals and small businesses, also known as HR 10 plans (option B) after the 1962 legislation (H.R. 10) creating them. They allow tax-deferred contributions, similar to qualified plans. Option A (Section 457 plans) applies to government and nonprofit employees, not self-employed individuals. Option C (403(b) plans) is for nonprofit employees (e.g., teachers), distinct from Keogh’s self-employed focus. Option D (Section 2503(c) trusts) relates to gifting for minors, not retirement. The study guide likely contrasts Keogh (HR 10) with other plans in a retirement section, noting its tax benefits and eligibility, confirming B as the correct synonym.