Regarding the inguinal canal

• A. It has a roof formed by lower edges of internal oblique and transverses muscles
• B. The ilioinguinal nerve enters the canal through the deep ring
• C. Its posterior wall is formed by the external oblique aponeurosis
• D. The conjoint tendon lies anterior to the superficial inguinal ring
• E. The superior epigastric artery crosses the posterior wall medial to the deep inguinal ring