Which pair best illustrates the contrast between innate ability and learned skill?

The correct choice of "Nature; nurture" effectively captures the contrast between innate ability and learned skills. This terminology directly reflects the longstanding debate in psychology regarding the roles that genetics and environment play in human development.

"Nature" refers to the genetic factors inherent in an individual, which encompass biological predispositions and innate talents. For example, certain abilities like musicality or mathematical aptitude may be influenced by one's genetic makeup, suggesting that these skills may come more naturally to some individuals.

On the other hand, "nurture" pertains to the influence of external factors, including experiences, education, and cultural background. Skills that are acquired through training, practice, or education fall under this category. For instance, someone may learn to play an instrument or develop social skills through exposure and practice rather than through genetic predisposition alone.

This pair clearly delineates the foundational concepts distinguishing natural endowments from accomplishments achieved through effort and learning, thereby illustrating the interplay between these two aspects in shaping human capabilities.