What is the recommended way to avoid STIs?

What is the recommended way to avoid STIs?
  1. Having sex with multiple partners
  2. Not using condoms during coitus
  3. Having sex with unknown partners
  4. Avoiding sex with unknown partners and using condoms during coitus

Solution

The recommended way to avoid STIs is to avoid sex with unknown partners and use condoms during coitus.

Asked in: NCERT

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