To answer this question, you need to understand the concepts related to executing multiple PL/SQL programs simultaneously.
Let's go through each option to understand why it is correct or incorrect:
Option A) Oracle Advanced Queuing - This option is incorrect because Oracle Advanced Queuing allows you to enqueue and dequeue messages, which can be used to execute PL/SQL programs concurrently.
Option B) DBMS_JOB - This option is incorrect because DBMS_JOB is a package that allows you to schedule and run jobs asynchronously. It enables you to execute PL/SQL programs simultaneously.
Option C) DBMS_SQL - This option is correct because DBMS_SQL is a package that provides an interface to execute dynamic SQL statements. While it allows you to execute SQL statements dynamically, it does not provide a mechanism to execute multiple PL/SQL programs simultaneously.
Option D) Pipelined Functions - This option is incorrect because pipelined functions allow you to transform and return query results as they are generated. They can be used to execute PL/SQL programs concurrently.
The correct answer is Option C) DBMS_SQL. This option is correct because DBMS_SQL does not provide a mechanism to execute multiple PL/SQL programs simultaneously.