Final answer:
In a Write Your Own (WYO) flood insurance program, private insurance companies are the ones who participate by writing and servicing flood insurance policies in their own names.
Step-by-step explanation:
The question regarding who would participate in a Write Your Own (WYO) flood insurance program is related to a program under the National Flood Insurance Program (NFIP) where private insurance companies are allowed to write and service the Standard Flood Insurance Policy in their own names. The government underwrites the policies, but it's the insurance companies that handle the policies. This program is a cooperative effort between the private insurance industry and the Federal Emergency Management Agency (FEMA). Therefore, the proper answer for who would participate in a WYO flood insurance program is C. Private insurance companies.