Select the word-pair that best represents a similar relationship to the one expressed in the given pair of words.

(The words must be considered as meaningful English words and must not be related to each other based on the number of letters/number of consonants/vowels in the word)

Road : Concrete

Wall : Brick

Road : Concrete

The logic followed here is :

Road is made up from Concrete

Similarly

Wall : Brick

Wall  is made up from Brick