Final answer:
Gonadal veins, which include testicular veins in males and ovarian veins in females, drain into the inferior vena cava and left renal vein. The right gonadal vein goes directly into the inferior vena cava, while the left gonadal vein enters the left renal vein.
Step-by-step explanation:
The gonadal veins are responsible for draining blood from the gonads, which are the testicles in males and the ovaries in females. To answer the student's question:
- Gonadal veins drain into the inferior vena cava.
- The right gonadal vein drains directly into the inferior vena cava.
- The left gonadal vein drains into the left renal vein.
Hence, the correct answer to the student's question is:
A) Inferior vena cava; Directly into the inferior vena cava; Into the left renal vein