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Question: If all three top-level elements occur in a source file, they must appear in which order?

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Question: If all three top-level elements occur in a source file, they must appear in which order?

A. Imports, package declaration, classes

B. Classes, imports, package declarations.

C. Package declaration must come first; order for imports and class definitions is not significant.

D. Package declaration, imports, classes.

E. Imports must come first; order for package declaration and class definitions is not significant.

Answer:D is correct. This order must be strictly observed.