Which of the Following Securities Sales Must Be Registered

Which of the following securities sales must be registered?

A) a sale of $450,000 in shares to 2,003 residents of Oklahoma and Arkansas
B) a sale of $10,000,000 in shares to 353 U.S.residents
C) a sale of $50,000,000 in shares to 10 institutional investors located around the United States
D) a sale of $50,000,000 in shares to 10,000 residents of Arizona by a company doing business only in Arizona
E) All of the above must be registered.