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Answer

Correct Option is DACB; D- initial

Solution:For the highlighted words, the correct rearrangement will be: DACB. Also, the word “rudimentary” must be replaced with “initial”. Thus, the sentence will be after rearrangement: “Following the initial concern over Pegasus, a subsequent wave of worries emerged when iPhone maker Apple released a fix in September for a weakness that can let the spyware infect devices without users even clicking on a malicious message or link.”

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