Final answer:
Regulation Z applies to credits extended for personal use and real estate transactions, not business purposes. It provides consumers with information about credit terms, and changes in regulations can increase the quantity of loans.
Step-by-step explanation:
Regulation Z applies when credit is extended for personal use or real estate transactions, which means the correct answers are a) Personal use and c) Real estate transactions. This regulation is part of the Truth in Lending Act and ensures that consumers are provided with uniform and meaningful information about credit terms, so they can compare lending options more easily. For businesses, other regulations and ordinance apply when they seek to operate, such as zoning regulations that divide a municipality into residential, commercial, and industrial districts, impacting the establishment and operation of businesses.
Moreover, financial market changes that make it cheaper and easier for banks to make home loans, as in the case when the federal government changes its bank regulations, will likely increase the quantity of loans made and received. Such adjustments in financial policies and regulations can have significant effects on the availability of loans for both personal and real estate transactions.