Listen to Mozart’s setting of Rex tremendae majestatis! ("King of tremendous majesty!"). Which is a true statement? Group of answer choices The dynamics are predominantly pianissimo. The chorus sings a cappella. The line of text is repeated several times. The tenor and soprano sing a duet.

The line of text is repeated several times

Explanation:

The music starts forte and while there are some piano moments, it's not mostly in the pianissimo dynamic. The choir is not singing acapella, there are strings playing under them. There is no tenor and soprano duet. The line Rex tremendae majestatis! IS repeated several times.

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 !