November 29, 2024
Explanation:
(b)
Option (a)
Similarity: Means the state or fact of being similar. "Without similarity in history" is awkward and not idiomatic.
Combating: Means taking action to reduce or prevent something bad or undesirable. This fits the context but not as precisely as some other words.
Prevalence: Refers to the commonness of a particular condition or disease. This word fits the context well, but the first word makes this option less suitable.
Option (b)
Precedent: Refers to an earlier event or action that is regarded as an example or guide to be considered in subsequent similar circumstances. "Without precedent in history" fits well.
Mitigating: Means making less severe, serious, or painful. This fits well in the context of reducing the impact of the virus.
Incidence: Refers to the occurrence, rate, or frequency of a disease. This fits well in the context.
Option (c)
Equivalent: Means equal in value, amount, function, meaning, etc. "Without equivalent in history" is not idiomatic.
Eradicating: Means destroying completely. This is too strong in the context of merely reducing the spread.
Toll: Refers to the number of deaths or casualties. This fits the context but the first word makes this option less suitable.
Option (d)
Parallel: Refers to something that is similar or analogous to something else. "Without parallel in history" does not fit well.
Controlling: Means exercising control or restraint. This does not fit well in the context of managing the spread of the virus as the previous word makes it redundant.
Outbreak: Refers to a sudden occurrence of something unwelcome, such as a disease. This fits but not as precisely as "incidence."