**Core Concept**
The Trendelenburg operation is a surgical procedure aimed at treating varicose veins, specifically focusing on the removal of problematic veins through a combination of ligation and stripping techniques. It involves addressing the superficial venous system, with an emphasis on eliminating the incompetent saphenofemoral junction, a common source of venous reflux.

**Why the Correct Answer is Right**
The Trendelenburg operation involves the flush ligation of superficial varicose veins, which is a critical step in addressing the incompetent saphenofemoral junction. This procedure involves tying off the vein at its junction with the deep venous system, followed by the removal of the vein segment. This approach prevents the backflow of blood into the superficial veins, thereby alleviating symptoms such as swelling and pain.

**Why Each Wrong Option is Incorrect**
**Option A:** Stripping of superficial varicose vein refers to a procedure where the entire length of the varicose vein is removed. While this is a component of the Trendelenburg operation, it is not the defining characteristic of the procedure.
**Option B:** Ligation of perforators involves tying off perforating veins, which connect the superficial and deep venous systems. While important in the treatment of varicose veins, this is not the primary focus of the Trendelenburg operation.
**Option D:** Ligation of short saphenous vein is a procedure that addresses the incompetent short saphenous vein, which is not the primary target of the Trendelenburg operation.

**Clinical Pearl / High-Yield Fact**
It is essential to note that the Trendelenburg operation is most effective when performed in conjunction with a saphenofemoral disconnection, which involves removing the vein segment at the saphenofemoral junction. This approach significantly reduces the risk of recurrence and improves long-term outcomes.

**Correct Answer Line**
✓ Correct Answer: C. Flush ligation of superficial varicose veins