According to writing standards and rules defined in the army's regulationpreparing and managing correspondence, to be understood quickly, writing must be complete, concise, clear, organized, to the point, and grammatically correct.
a. true
b. false

True

Explanation:

Effective Army writing must be understood by the reader in one quick and single read. For that, it must be free of errors in substance, organization, style and correctness. According to this, Army writing must be concise and organized, helping the reader to understand the main point.

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 !