Which of the following is NOT a government secondary mortgage entity?

Farmer Mac, or the Federal Agricultural Mortgage Corporation, is primarily focused on providing a secondary market for agricultural loans rather than being categorized as a traditional secondary mortgage entity. Ginnie Mae, Fannie Mae, and Freddie Mac are well-known entities that serve the residential mortgage market by promoting global liquidity and facilitating the funding of mortgages through the sale of mortgage-backed securities. These three organizations are directly linked to the housing finance system and play crucial roles in ensuring that mortgage lenders have the funds to provide financing to homebuyers.

In contrast, Farmer Mac specifically targets the agricultural sector, assisting in the issuance of mortgage-backed securities for loans related to agricultural properties and rural development, thus distinguishing its function from the typical roles of Ginnie Mae, Fannie Mae, and Freddie Mac, which deal primarily with conventional residential mortgages.