**Core Concept**
The inguinal canal is a complex anatomical structure that allows for the passage of the spermatic cord in males and the round ligament in females. It is formed by the aponeuroses of the internal oblique and transversus abdominis muscles, the inguinal ligament, and the fascia transversalis.

**Why the Correct Answer is Right**
The anterior wall of the inguinal canal is formed by the aponeurosis of the external oblique muscle, specifically the interfoveolar ligament is not a part of the anterior wall. The interfoveolar ligament is actually a structure that connects the two aponeurotic flaps of the external oblique muscle, but it does not contribute to the formation of the anterior wall of the inguinal canal. The roof of the inguinal canal is formed by the internal oblique muscle, the floor by the inguinal ligament, and the anterior wall by the aponeurosis of the external oblique muscle.

**Why Each Wrong Option is Incorrect**
**Option A:** Internal oblique forms the roof - This statement is true as the internal oblique muscle forms the roof of the inguinal canal.
**Option B:** Inguinal ligament forms the floor - This statement is also true as the inguinal ligament forms the floor of the inguinal canal.
**Option C:** Fascia transversalis forms anterior wall - The fascia transversalis actually forms the posterior wall of the inguinal canal, not the anterior wall.

**Clinical Pearl / High-Yield Fact**
It is essential to remember that the inguinal canal is a common site for hernias, particularly indirect inguinal hernias, which occur when the posterior wall of the inguinal canal is weak and allows abdominal contents to protrude through it.

**✓ Correct Answer: D. Interfoveolar ligament forms lateral two third of anterior wall**