Answer: Option(a) is correct.
Step-by-step explanation:
Correct option: Primary; secondary
Primary market is a market in which new stocks and securities are issued for the first time. Firms are selling their shares and bonds for the first time to the public. For example; IPO (Initial Public Offering).
Secondary market is a market in which buying and selling of already owned securities takes place. In this type of market investors trade with each other rather than with issuing firm.