How many states have adopted the fda food code as a guideline for their own regulations a.46/b.48/c.49/d.50

I believe the correct answer is B. 48 countries in the United States.

As of the year 2007 in the United States 48 countries (from 50) have adopted the FDA food codes. Food Code in the United Stets is released by the United States Food and Drug Administration (FDA) every four years and it systematizes the basic standards that relate to food, condiments, stimulants and drink and beverages.

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 !