A set of wrapped flowers is delivered to a workplace at 4:50, 10 minutes before closing. Immediately after closing, the recipient will bring the flowers home and place into water. The flowers will be in water by 5:10. How should the florist package the flowers? A. Dry pack
B. Wet pack

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 !

trying using google im so sorry