Which is a feature of proportion in design?

Feature of proportion in design is the size of furniture.

Explanation:

The proportion in design will correspond to the size of the appointments arranged for a room for example. A castle with enormous rooms will require much longer pieces of appointments than a small cottage for a couple.

i'm not sure i completely understand your question, but i will do my best.

i think the answer you are looking for is sequence. (see below)

a repeated melodic fragment would be best defined as repetition, while repeated chords (different or the same) could be a chord progression. however, you then mentioned the chord and melodic fragment beginning on higher or lower pitches, in that case, the answer could be best defined as a sequence. the definition of a sequence is as follows: "the restatement of a motif or longer melodic (or harmonic) passage at a higher or lower pitch in the same voice."

let me know if this !