Targeted Use and Innovation Against Resistance

Steps:

• Identify that antibiotic resistance arises from overuse or misuse, selecting resistant bacteria.
• Assess option 1: Narrow-spectrum antibiotics target only affected bacteria, minimizing exposure of others to selection pressure.
• Assess option 2: Antibiotics ineffective against viruses; their use here accelerates resistance without benefit.
• Assess option 3: New antibiotics expand options, countering evolved resistance strains.

Why C is correct:

• C combines 1 and 3, aligning with antimicrobial stewardship guidelines that emphasize precise prescribing and ongoing R&D to curb resistance evolution.

Why the others are wrong:

• A includes 2, which promotes unnecessary resistance by misapplying antibiotics.
• B includes 2 but omits 3, failing to address innovation needs.
• D includes 2 but omits 1, ignoring targeted therapy benefits.

Final answer: C