A 65-year-old man presents to the clinic with complaints of swelling in his lower extremities, abdominal discomfort, and weight gain over the past few weeks. On examination, you notice jugular venous distention and hepatomegaly. Which condition is most likely causing these symptoms?

Rationale: A. Typically causes pulmonary symptoms, such as dyspnea, orthopnea, and pulmonary edema, rather than peripheral edema and hepatomegaly. B. Right-sided HF leads to systemic venous congestion, causing peripheral edema, jugular venous distention, hepatomegaly, and abdominal discomfort. Weight gain from fluid retention is also common. C. Can cause ascites and hepatomegaly, but usually accompanied by stigmata of chronic liver disease (jaundice, spider angiomas) and not jugular venous distention due to cardiac causes. D. May cause generalized edema and weight gain, but jugular venous distention and hepatomegaly are less specific, and lab findings (BUN, creatinine) would help distinguish.