Answer:
D). I, II, and III.
Step-by-step explanation:
The author's choice of the genre may affect his writing style or the choice of literary techniques to convey the intended message but the things that would not be affected by the author's choice of the genre are the purpose, organization, and choice of details. The purpose of the narrator includes his idea or intent behind writing a work which may include informing, persuading, or entertaining them.
The author's purpose could be solved through any genre he/she is writing, only the manner of portrayal would vary not the purpose. Similarly, the organization or structure and the choice of details too would not be affected by the choice of genre as though every genre carries its own distinctive style but there is always a sequence followed along with a particular content to be related to the audience. Thus, option D is the correct answer.