According to Paragraph B, the EPR effect allows for a reduction in the total systemic dosage of anti-cancer drugs, which in turn leads to a decrease in _______________.
✅ Why correct: Paragraph B states, "This passive targeting mechanism significantly improves the therapeutic index of many anti-cancer drugs, allowing for lower systemic doses and reduced off-target toxicity." The phrase "reduced off-target toxicity" directly indicates that the EPR effect leads to a decrease in off-target toxicity. ❌ Why wrong: * "on-target efficacy" is incorrect because the EPR effect improves the therapeutic index, meaning it enhances overall effectiveness, not reduces efficacy. * "tumor vasculature damage" is incorrect because the passage describes tumor vasculature as *already* compromised, which *enables* the EPR effect, rather than being a result of it. * "nanoparticle retention" is incorrect because the passage states that impaired lymphatic drainage in tumor tissues contributes to *increased* retention of nanoparticles, not a decrease. ⚠️ Trap pattern: Distractor based on misinterpretation of cause and effect. The question asks for a consequence *of* the EPR effect, while some distractors describe conditions that *enable* it or factors that are *increased* by it. 💡 Next step: When answering sentence completion questions, carefully identify the logical relationship between the clauses (cause/effect, contrast, etc.). Scan the passage for keywords related to both parts of the sentence to find the precise connection. Pay close attention to words like "leads to," "results in," "due to," or "consequently."
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