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Safe drinking water and good sanitation prevent chiefly

  • A.hepatitis C and D
  • B.hepatitis B and D
  • C.hepatitis A and E
  • D.hepatitis B and C

Answer: C

Both are enterically transmitted, so breaking the faecal-oral route by treating water and disposing of sewage properly prevents them. The blood-borne viruses are unaffected by sanitation and need quite different measures.

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