Which of the following statements are true?
a. ObjectInputStream/ObjectOutputStream enables you to perform I/O for objects in addition for primitive type values and strings.
b. Since ObjectInputStream/ObjectOutputStream contains all the functions of DataInputStream/DataOutputStream, you can replace DataInputStream/DataOutputStream completely by ObjectInputStream/ObjectOutputStream.
c. To write an object, the object must be serializable.
d. The Serializable interface does not contain any methods. So it is a mark interface.
e. If all the elements in an array is serializable, the array is serializable too.
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