which of the following is an agent of a sexually transmitted disease?

  • A Entamoeba histolytica
  • B Salmonella typhi
  • C Treponema pallidum
  • D Clostridium tetani

The correct answer is C. Treponema pallidum

Treponema pallidum is the bacterium responsible for causing syphilis, which is a sexually transmitted disease (STD). 

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