What is the Realizable Interface ?

I came across a question regarding java.io.Realizable interface in one of the mock tests.
The question is as follows :
Which three statements regarding the use of java.io.Realizable interface are true ?
A. Object from classes that use aggregation cannot be serialized.
B. An object serialized on one JVM can be successfully desterilized on a different JVM.
C. THe values in fields with the Volatile modifier will not survive serialization and deserialization .
D. THe values in field with the transient modifier will not survive serialization and deserialization .
E. IT is legal to serialize an object of a type that has a supertype that does NOT implement java.io.Serialization
*Answer : B,D,E*I was not able to locate any realizable interface using Google.Does this interface exist or has been renamed or depleted ? Or is the question wrong ?
Thank you for your consideration.

It's a typo. You should have been able to guess the correct term given the bold-faced clues.
A. Object from classes that use aggregation cannot be serialized .
B. An object serialized on one JVM can be successfully desterilized on a different JVM.
C. THe values in fields with the Volatile modifier will not survive serialization and deserialization .
D. THe values in field with the transient modifier will not survive serialization and deserialization .
E. IT is legal to serialize an object of a type that has a supertype that does NOT implement java.io.*Serialization*
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