The nurse is differentiating between a macule and a papule when evaluating a client's skin lesion. The nurse determines that the lesion is a papule when which characteristic is noted?
a) It is a flat, discolored area of the skin
b) It is a raised, solid area less than 1 cm in diameter
c) It is a fluid-filled blister
d) It is a thickened area of skin with deep creases