Which is a valid abstract class?

Which is a valid abstract class?

Which is a valid abstract class?

A.
public abstract class Car { protected void accelerate(); }

B.
public interface Car { protected abstract void accelerate(); }

C.
public abstract class Car { protected final void accelerate(); }

D.
public abstract class Car { protected abstract void accelerate(); }

E.
public abstract class Car { protected abstract void accelerate() { //more car can do }}



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