Select the abbreviation that tells how the italicized noun clause is used. s-subject, do-direct object, sc-subject complement, op-object of prepositionthe valedictory prize will be awarded to  whoever has the highest academic rating. sopscdo

answer: do

the 'italicized phrase' is a noun clause that is used as a direct object.

answer; i believe the correct answer is ( indirect characterization);

sentence lenght varies according to word choice.you select which word to use and that will require to use other expressions that collocate with the word chosen.sentence length will vary   according to the choice of words you make to express your ideas.