Which two statements are correct about PL/SQL package components? (Choose two)

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answerhappygod
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Which two statements are correct about PL/SQL package components? (Choose two)

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Which two statements are correct about PL/SQL package components? (Choose two)

A. A package must have both specification and body.
B. A package body can exist without the package specification.
C. A package specification can exist without the package body.
D. When a packaged public variable is called for the first time in a session, the entire package is loaded into memory.
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