Mohammed and Mary Are Neighbours

Multiple Choice

Mohammed and Mary are neighbours. In the spring Mohammed cut down his maple tree, which was very close to their property line. Mohammed's action has drastically increased the amount of sun exposure on Mary's shade plants, which have now suffered. Mary is devastated and angry but does not say anything to Mohammed. Mohammed continues to wave and smile at Mary each morning. According to the textbook, Mary is "in a fight with herself" because this situation lacks which conflict variable?

A) interdependence
B) expressed struggle
C) interference from the other party
D) perceived scarce resources