Answer:
In the book Tuesdays, Morrie feels liable because he thought the rain caused David to get polio and they played outdoors instead of going inside when it rained.
I'd like to say its a conversational(<span>appropriate to an informal conversation)</span> and inquisitive(curious or inquiring) tone
Structure in writing depends on what the objective - what the writer is trying to convey. If it is an argument, the structure will include a problem statement, supportive explanations and a conclusion. If it is a narrative, the structure can be subjective - the narration will go along with the observer throughout; or it can be chronological - a description based on time order. If it is simply writing something personal, then the structure can be flexible and free flowing.
C is the answer for your question
