To complete the variable declaration for a record, the correct answer is A) %ROWTYPE.
Explanation:
When declaring a variable for a record in PL/SQL, you can use the %ROWTYPE attribute to associate the variable with a table's structure. The %ROWTYPE attribute allows you to declare the variable based on the structure of a specific table. This means that the variable will have the same attributes and datatypes as the columns in the table.
In the given code snippet, the variable l_foo_table should be declared as a record associated with the structure of a table. Therefore, the correct syntax to complete the variable declaration is:
DECLARE
l_foo_table table_name%ROWTYPE;
By using %ROWTYPE, the variable l_foo_table will have the same attributes and datatypes as the columns in the table_name table.