It is a run-on sentence, because there needs to be a comma after 'his food'. If there were, it would be a normal sentence, but since there isn't, it is a run-on sentence, meaning it lacks the appropriate punctuation mark.
I believe its c. Decrease Indent.
Answer:
write a letter to your friends tell him or her about your plans after leaving senior high school
Man vs. Nature
The natural forces of the Earth are acting against him.
