Given here are four sentences. The first sentence is in the correct order, while the rest of the sentences are jumbled. Pick the option that gives the correct order.

A. Belgium and the political entities that preceded it have been rich with historical and cultural associations,

B. to its contributions to the arts of the 20th century and its maintenance of the folk cultures of past eras.

C. from the Gothic grandeur of its medieval university and commercial cities and its small, castle-dominated towns

D. on steep-bluffed winding rivers, through its broad traditions in painting and music that marked one of the high points of the northern Renaissance in the 16th century,