All of the following show interactions between markets except:

a. Purchase of a mortgage issued by Freddie Mac by the Federal Reserve Bank.

b. Sale of stock to raise equity for a new company to an insurance provider.

c. Increase in short term target rates by the Fed on the bond market resulting in stock market increases when announced in the press.

d. Restrictions in bank lending as the result of increasing capital requirements resulting in lower real estate prices and fewer sales on the real estate market.

e. All of these are examples of market interactions.