Which of the Following About Product Placements Are True

Which of the following about product placements are true?

A) Product placements primarily take place in movies and television only.
B) Producers must get permission from a company before placing a product in a production.
C) Brand integration is the least invasive form of product placement.
D) Paid product placements must now be disclosed in the credits at the end of a production in the U.S.
E) None of the above statements is true.