Helen's cat fluffy has run away, and she places reward posters throughout herneighborhood. mark sees one of the reward posters and spends the next six hourssearching for fluffy. while mark is searching the neighborhood, fluffy gets hungry andcomes home. a. this is a bilateral contract, and mark is entitled to be compensated for his efforts. b this is a bilateral contract, and mark is entitled to nothing because he did not perform. c this is a unilateral contract, and mark is entitled to be compensated for his efforts. d this is a unilateral contract, and mark is entitled to nothing because he did notperform.