What value will be stored in columns of data type "Date" for a row with a primary key of -2?

In the context of data models and databases, when a column is defined with a data type of "Date," it typically requires a valid date value to be stored. If the primary key is -2, which is a numeric value and does not correspond to any standard date representation, it is not valid as a date.

In relational databases, if a date column does not have a valid date to store—such as when data is missing, inapplicable, or when a row is newly created but not yet populated with appropriate date data—NULL is the value that signifies the absence of any data for that particular field. This indicates that there is no valid date associated with the primary key of -2.

The other options, such as -2 or 12/31/1840, suggest data types that conflict with the "Date" data type, as negative numbers are not interpretable as dates, and while 12/31/1840 is a valid date, it does not correlate with the context given by the primary key of -2. The choice of "Not Applicable" may also seem relevant, but it does not convey the conventional database representation of a missing or undefined value for a date field, which is represented by NULL. Therefore