O Levels Biology (5090)•5090/11/O/N/18

Explanation
Infectious hepatitis as a liver disease cause
Steps:
- Examine graph for death rate differences in liver disease between countries X and Y.
- Recall liver diseases include viral infections like hepatitis B and C, which are infectious.
- Evaluate options for factors influencing liver disease rates, prioritizing infectious causes.
- Select option linking higher rates to more infectious disease in one country.
Why C is correct:
- Hepatitis viruses (B and C) are infectious agents that directly cause chronic liver inflammation, cirrhosis, and death, per medical definitions of viral liver disease.
Why the others are wrong:
- A: Gender distribution affects overall rates but not specifically liver disease without population data.
- B: Fat consumption links to non-alcoholic fatty liver disease, unrelated to primary infectious causes.
- D: Alcohol causes alcoholic liver disease, but graph differences point to infectious factors, not drinking habits.
Final answer: C
Topic: Diet
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