The valid code fragments in java are “BankAccount account = new SavingsAccount();”, “BankAccount account = null;”. Hence, the correct answers are option “ A ” and “ C ”.

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Chapter 9.4, Problem 16SC

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The valid code fragments in java are “BankAccount account = new SavingsAccount();”, “BankAccount account = null;”.

Hence, the correct answers are option “A” and “C”.

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