I think the answer to your question would be Ethos because the definition of ethos means the characteristics of the era or culture which could include the speakers experiences.i hope this helps enjoy the rest of your day :)
Answer:
a, b, b, a
Just look at the last words and see if they rhyme. Day's rhyme with praise and Lights rhymes with right.
The correct answer is option two.
An infinitive phrase consists of an infinitive verb, and can be followed by a complement or a modifier, which is usually an adverb.
In the sentence above, the infinitive phrase comes before a complement "variety and interest to their writing."