Which of the Following Statements Are True of the Rib

Which of the following statements are true of the rib cage (Select all that apply) ?

A) The manubrium articulates with all of the true ribs.
B) During inhalation the ribs are pulled up and in.
C) All of the ribs articulate with the thoracic vertebrae.
D) The most inferior part of the sternum is the xiphoid process.
E) The floating ribs help protect the heart.
F) The true ribs and false ribs have costal cartilages.