Answer:
C). Writing.....comprehending.
Step-by-step explanation:
As per the question, the words that appropriately fills the gap in the given statement are displayed in option C. The thesis statement illustrates the statement describing the central idea or argument of the author. Thus, it guides the researcher's writing towards explaining and substantiating the claims proposed in the thesis statement and it assists the reader in comprehending the essay's ideas and purpose by revealing the central idea and scope of the essay that helps them to be prepared for the upcoming content. Thus, option C is the correct answer.