What does the author mean by the "ocean of truth" he describes

In tim o’brien’s chapter good form what does the narrator say is the happening truth

"ten from the sea to the sand he walks, to look in the soil, but not in the box''!

In a group discussion, which statement most clearly uses evidence to support a conclusion? a) the author makes some good points, but i feel that he’s ultimately biased. b) the author proves that he’s biased when he uses terms like “silly” and “stupid”. c) the author obviously hates the way fast food tastes, which is why he’s negative. d) the author first criticizes fast food, and then goes in to criticize junk food.