Final answer:
Pustules are small elevations of the skin that contain pus.
Step-by-step explanation:
The correct answer is Pustules (option 1).
Pustules are small elevations of the skin that are similar to vesicles in size and shape but contain pus. They are caused by infections, such as acne, impetigo, or folliculitis, where pus-producing microorganisms are present. Pustules often appear as small fluid- or pus-filled bumps on the skin.Pus is a mixture of dead white blood cells, bacteria, and tissue debris. Pustules are a common type of skin lesion and are often associated with various skin conditions, including acne, folliculitis, and certain bacterial infections.