Consider the graph below for 3 metals which have been cold-worked. From the graphs, which of the following statements are true? Select one or more: a. A is harder than C and is less ductile b. B is harder than C but has nearly similar ductility c. B is softer than C and has nearly similar ductility d. A is harder than C and is more ductile e. B and C have similar hardness; C has greater brittleness f. A and B have similar hardness; A has greater brittleness