Which is a combining form, not a prefix or a suffix? a. centesis b. patho c. opsy d. retro

The correct answer is B. Patho is a combining form, not a prefix or a suffix, as it is a word that has a meaning by its own.

Explanation:

Pathos is one of the two forces that regulate the human soul according to Greek thought. It opposes the Logos, which is the rational part. Pathos in fact corresponds to the irrational part of the soul. It can have both positive and negative connotations depending on the context.  

For the ancient Greeks this "emotional force" was closely connected to the Dionysian realities or in any case of the mystery rites. For this reason Pathos indicated all the irrational instincts that bind man to his animal nature and prevent him from rising to the divine level.

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 !