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Which statements about Java code security are true?() 

A

 The bytecode verifier loads all classes needed for the execution of a program.

B

 Executing code is performed by the runtime interpreter.

C

 At runtime the bytecodes are loaded, checked and run in an interpreter.

D

 The class loader adds security by separating the namespaces for the classes of the local file system from those imported from network sources.

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