Which of the following types of drywall is specifically designed for use in high-humidity areas?

Moisture-resistant drywall is specifically designed for use in high-humidity areas, making it the correct choice. This type of drywall is often treated with special materials or additives to resist moisture and prevent mold and mildew growth, which is critical in locations such as bathrooms, kitchens, or laundry rooms where humidity levels can remain elevated.

In contrast, standard drywall lacks these moisture-resistant properties, making it unsuitable for high-humidity areas as it can absorb moisture, leading to structural damage and health hazards. Fire-resistant drywall is designed to slow the spread of fire, serving a different purpose entirely, while impact-resistant drywall is built to withstand physical damage but does not necessarily address moisture concerns. Therefore, moisture-resistant drywall is specifically tailored to maintain its integrity and performance in environments where humidity is a significant factor.