Answer:
The correct answer is D
Explanation:
Shelf registration is the process which involves the regulation that the company or the corporation could evoke or call up to comply or follow with the SEC (which stands for U.S. Securities and Exchange Commission) requirements of the registration for the new stocks that are offering upto 2 years before the actual offering to the public.
It allows the issuer for filing the registration statement with the SEC and it is for a period of 3 years, to sell the securities when the issuer consider the appropriate time.