Select the pair that best expresses a relationship similar to that expressed in the original pair:
EPIDERMIS : SKIN
Correct: C
The EPIDERMIS is the outermost protective layer of the SKIN. The relationship is 'outer layer to whole'. Similarly, the BARK is the outermost protective layer of a TREE. Crust is the outermost layer of Earth, but bark provides a closer functional analogy to epidermis in a biological sense. Petal is a part of a flower, but not necessarily the outermost protective layer. Roof is the top of a house, but bark is more integral as an outer layer.