In a database with the database character set of US7ASCII and a national character set of UTF-8, which datatypes would be capable of storing Unicode data by default?（）A. VARCHAR2B. CHARC. NVARCHAR2D. CLOBE. LONG

单项选择题

In a database with the database character set of US7ASCII and a national character set of UTF-8, which datatypes would be capable of storing Unicode data by default?（）

A. VARCHAR2
B. CHAR
C. NVARCHAR2
D. CLOB
E. LONG

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