All of the Following Are Types of Illegal Insider Trading

All of the following are types of illegal insider trading EXCEPT:

A) officers or directors who pass valuable information to someone who trades in the company's stock and then is repaid in some way.
B) an officer or director who makes a direct profit on an investment based on information gained just after the public announcement of a major development.
C) an officer or director who buys stock and options through overseas financial institutions in his own company prior to a public announcement of information which greatly enhances the value of the stock.
D) an officer or director of a company who related information for a fee to investment bankers on companies his company is planning to target for takeover.