In a drug _____, the body responds to a certain medication as if it is harmful. Which term best completes the sentence?

• A. allergy
• B. tolerance
• C. dependence
• D. withdrawal

Answer: (A)

Verified step by step guidance

1. Step 1: Understand the context of the problem, which is about the body's response to a medication.
2. Step 2: Review the definitions of the given terms: 'allergy', 'tolerance', 'dependence', and 'withdrawal'.
3. Step 3: Recognize that an 'allergy' refers to an immune system reaction where the body treats a substance as harmful, causing symptoms.
4. Step 4: Note that 'tolerance' means needing more of a drug to achieve the same effect, 'dependence' is when the body requires the drug to function normally, and 'withdrawal' refers to symptoms when the drug is stopped.
5. Step 5: Conclude that the term that best fits the sentence describing the body responding as if the medication is harmful is 'allergy'.