Which is refers to the process of offering shares of a private corporation to the public in a new stock issuance.a.POb.NPOc.IPOd.UPO

The process of offering shares of a private corporation to the public in a new stock issuance is referred to as an Initial Public Offering (IPO).

Breakdown of Options:

1. PO (Public Offering) - This is a general term that can apply to the offering of shares to the public but does not specify that these shares are coming from a private corporation becoming publicly traded for the first time.
2. NPO (New Public Offering) - This term is not standard in finance and does not specifically denote the process described in the question.
3. IPO (Initial Public Offering) - This is the correct term used to denote the first time a company offers its shares to the public.
4. UPO (Underwriter Public Offering) - This is also not a standard term and does not directly relate to the process being described.

Final Answer:

c. IPO (Initial Public Offering) is the correct answer.