The scenario requires prompting for column names and WHERE condition each time the query is executed, but only prompting for the table name once. This behavior is achievable through the use of substitution variables in SQL*Plus or SQL Developer:
A .
SELECT &col1, &col2 FROM &&table WHERE &condition;
This query uses & for columns and condition, which will prompt every time the query is run. &&table will prompt for the table name the first time and reuse the same value in the same session without re-prompting.
Options B, C, D, and E use incorrect syntax or variable types, leading to various errors or undesired behaviors, such as not maintaining the value of the table name across executions or incorrect usage of single quotes and comparison in SQL.