Which action is due to field forces? Select one of the options below as your answer: A. an apple falling from a tree B. a moving car stopping when the brakes are applied C. the rowing of a boat D. pushing a chair against the wall

Field force is when the force which you exert on prticular subject acts only on this subject, other subjects that sorround yours are not included, whereas the like gravity acts equally on everything. So the correct answer is D. pushing a chair against the wall.