Answer: Option (D) is the correct answer.
Step-by-step explanation:
Working in a laboratory can be dangerous if proper precautions are not followed.
Since, Denise heats a beaker of dilute acid on a hot plate in a fume hood so, he should be wearing goggles, a lab coat, heat-proof gloves, and close-toed shoes.
This is because even if accidentally acid spurts or falls on his feet then his skin must be covered so that he doesn't get burned.