You want to schedule a job to rebuild all indexes on the SALES table after the completion of a bulk load operation. The bulk load operation must also be a scheduled job that executes as soon as the first file that contains data arrives on the system. How would you create these jobs?（）

• A、Create both jobs by using events raised by the scheduler
• B、Create both jobs by using events raised by the application
• C、Create a job to rebuild indexes by using events arised by the application and then create another job to perform bulk load by using events raised by the scheduler
• D、Create a job to rebuild indexes by using events arised by the Scheduler and then create another job to perform bulk load by using events raised by the application