Q28 / 270 · NDA 2016 (Phase 2) · General Ability

Select the word you consider most appropriate to fill in the blank space. The belief in the _____ of vaccination is gaining ground.

  • A
    immunity
  • B
    prevalence
  • Correct answer
    C
    efficacy
  • D
    workability

Solution

Efficacy means the power to produce a desired result or effect.

Hence, the correct answer is option: 'C'.

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