---- the discovery of penicillin, bacterial infections that are now considered trivial were frequently fatal.
Answer and explanation
Correct answer: B. Prior to
- Step 1: The sentence contrasts the era before Alexander Fleming's discovery with modern medicine.
- Step 2: 'Prior to' is a prepositional phrase meaning 'before'.
Answer
Prior to.
Why not the others: 'In view of' means considering; 'As for' means regarding; 'In terms of' means in relation to.
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