· The correct phrase is "brought about," which means caused or introduced by. This fits the context of the sentence, as the fashion trend was initiated due to the effects of smallpox.
Hence, option (d) is the answer.
Incorrect options:
· Within and around: Incorrect prepositions for this context. "Within" indicates something inside a specific boundary or timeframe (e.g., "within a week" or "within the room"). This doesn't fit because the sentence refers to the cause of the fashion trend, not a timeframe or physical space. "Around" implies proximity or general location (e.g., "around the corner" or "around the 18th century"). It doesn't work in this context because the sentence discusses causation, not location or approximation.
· To: Does not convey the intended meaning here. "To" typically indicates direction, purpose, or a relationship (e.g., "given to" or "connected to"). However, it doesn't convey the causal relationship needed in this sentence.