In question numbered 92 above, choose the best option from letters A - E that best completes the gap.
The sentence reads:
Modern science has made available -92- to prevent many childhood diseases and this is the only guarantee of -93- from these scourges.
The key word here is “to prevent". Vaccines are specifically designed to prevent diseases. Injections, tablets, medicine and drugs are used for treatment, not prevention. Although vaccines are given by injection, the correct scientific term for substances that prevent diseases like measles and whooping cough is vaccines.
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