A 65-Year-Old Man Comes to the Office Due to Abdominal

A 65-year-old man comes to the office due to abdominal distension. The abdominal distention started two months ago. The patient was diagnosed previously with hepatitis C. On examination, his temperature is 36.7 C (98 F) , blood pressure is 120/78 mm Hg, the pulse is 82/min and respirations are 20/min. The abdomen is distended, with yellowish discoloration of skin and icterus. The paraumbilical veins are engorged. There are multiple spider nevi over the chest and the arms. Which of the following structures has increased pressure?

A) A
B) B
C) C
D) D