Please Read the Clinical Scenario, and Then Answer the Question

Please read the clinical scenario, and then answer the question that follow to become familiar with the traditional NCLEX question format.
A mother brings in her unimmunized, otherwise healthy, 7-year-old daughter to the pediatric office where you are the charge nurse. The child has nearly 100 lesions all over her body, mainly localized to her trunk. Most of the lesions are vesicular, but a few have scabbed over. According to the mother, her daughter broke out in this rash about 5 days ago. She never experienced a fever, but the rash seems to be incurably itchy. As the mother is telling you this, you see her daughter itch open one of the vesicles, revealing a clear fluid.
-One of your nurses begins calling the state health department to report a suspected case of smallpox infection.You stop her,citing the distinct differences between the symptoms of chickenpox and smallpox.Which of the following answers is not true concerning the two diseases?

A) Smallpox features deep lesions mainly on the extremities,whereas chickenpox features superficial lesions mainly on the trunk.
B) Smallpox patients exhibit a prodromal fever,whereas chickenpox patients do not.
C) Smallpox lesions are filled with clear fluid,whereas chickenpox lesions are filled with a thick,opaque liquid and are distinctly indented in the center.
D) Smallpox is caused by the variola virus,whereas chickenpox is caused by human herpesvirus 3.