Which pair of words relates similarly to "buttress" and "wall"?

The correct pairing is centered around the relationship of support and structure. "Buttress" is a support structure for a "wall," aiding in stability and strength. Similarly, a "philanthropist" supports a "charity" through financial contributions or resources, helping that charity to function and fulfill its mission.

The other options do not reflect this supportive relationship as clearly. Columns and pillars might be considered synonymous in some contexts but do not denote a supportive relationship that enhances one another in the same way. A document and a preamble do not share a relationship of support, as the preamble is an introductory statement rather than a supporting element for the document. Lastly, while cream and lotion can both be used for skin care, one does not support the other in a structural sense; they are more parallel items than one being supportive of the other.

Thus, the relationship portrayed in the chosen answer mirrors the essence of how one element supports or enhances the function of another within a specific context, much like a buttress supports a wall.