Which statement about the Java class is true?

a.A class is a blueprint of objects and can be executed in the computer memory.

b.A java method can be the mutator and the accessor at the same time.

c.From a single class definition, we can create multiple objects with the exact same state. However, these same state objects will have different locations in the computer memory.

d.An object can be generated based on multiple class definitions.

e.You can define the same class twice in a java program. The new class definition below will overwrite the old class definition above automatically during the compilation.