单项选择题

Which of the following would be affected by setting NLS_LENGTH_SEMANTICS=CHAR？（）

A. All objects in the database
B. Tables owned by SYS and SYSTEM
C. Data dictionary tables
D. NCHAR columns
E. CHAR columns

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1Z0-053

Which of the following would be affected by setting NLS_LENGTH_SEMANTICS=CHAR？（）