Which of the following keywords allows a subclass to access a superclass method even when the subclass has overridden the superclass method?

If a column named SAL_PCT is to be defined to ensure a value of 100 is input if a NULL value is provided when a new row is inserted, which column definition should be used??

A) ?SAL_PCT NULL 100 DEFAULT. B) ?SAL_PCT DEFAULT ON NULL 100. C) ?SAL_PCT DEFAULT 100. D) ?SAL_PCT ON NULL 100.

Anidselector is simply a pound sign (#) followed by theid____ for the element.

A. name B. alignment C. contact D. value