What is a notable benefit of tetracyclines compared to penicillins?

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They are completely free of adverse effectsThey do not lead to secondary infectionsThey are safer for use during pregnancyThey exhibit a broader spectrum of antibacterial effectivenessThey are less likely to cause allergic reactions

Explanation

Tetracyclines are distinguished from penicillins primarily because they possess a wider spectrum of antibacterial activity, allowing them to target a broader range of bacterial species.