Dry skin is usually characterized as:

Dry skin is usually associated with a lack of moisture and oil in the skin, which makes it less likely to be prone to acne. Acne typically occurs when hair follicles become clogged with excess oil, dead skin cells, and bacteria. Since dry skin produces fewer oils, the conditions that commonly lead to acne breakouts are not as prevalent. This makes the skin less oily and less likely to develop the blemishes associated with acne.

In contrast to the correct answer, the other options present characteristics that do not align with dry skin. For instance, oily and shiny skin is indicative of increased sebum production, which is the opposite of dry skin. Similarly, large pores are commonly seen in oily skin types where the pores can become clogged, while dry skin usually features smaller, less noticeable pores. Thus, the characterization of dry skin as not being prone to acne accurately reflects its properties and typical skin challenges.