Question

what can a person do to limit exposure to x - rays?
wear sunblock
avoid cigarette smoke
wear a protective lead vest
avoid chemicals

Explanation:

• Wear sunblock: Protects against UV rays, not X - rays.
• Avoid cigarette smoke: Reduces exposure to harmful chemicals in smoke, not X - rays.
• Wear a protective lead vest: Lead is effective at blocking X - rays.
• Avoid chemicals: Reduces exposure to chemical substances, not X - rays.

Answer:

wear a protective lead vest