Sunken stomata are found in?

Explanation

Sunken stomata are typically found in xerophytes, which are plants adapted to survive in dry, arid environments with limited water availability. These stomata are located in pits or depressions in the epidermis of the plant, which helps to reduce water loss due to evapotranspiration. Xerophytes have evolved various adaptations like thick cuticles and reduced leaf surface area to conserve water. The other options, mesophytes, halophytes, and hydrophytes, are adapted to different environmental conditions and do not typically have sunken stomata.