The thing that we learn from the given passage is that Harry has probably been bitten by an exploration bug that is explicit through his 'journey thru the center of the earth'. Thus, option D displays the most appropriate inference about Harry. The other options suggest unsubstantiated claims. Option A is wrong as there is no description of food while options B and C are incorrect as there is no clarity about the character traits that would state the character as static or dynamic. This makes us conclude <u>option D</u> as the answer.
