Regarding the radial nerve, which is true?
A.
It arises from the medial cord of the brachial plexus.
B.
It lies to the medial side of the brachial artery.
C.
It has no branches in the arm .
D.
It is easily injured when the fracture of the surgical neck of humerus.
E.
It runs posteriorly with the deep brachial artery