- The rash of chickenpox typically shows a centripetal distribution, meaning it is denser on the trunk and proximal extremities than on distal limbs and face.
- This pattern is a hallmark of varicella infection and helps distinguish it from other exanthems with centrifugal or dermatomal patterns.
- The lesions evolve through macules, papules, vesicles, and crusts simultaneously, primarily concentrating on the central body.
- This distribution reflects the virus's pathophysiology and skin tropism, making option 1 the correct choice.

Reference: Andrews' Diseases of the Skin, 13th Edition, Chapter 13, p. 430