How would you create these jobs?

You wish to create jobs to satisfy these requirements:
1. Automatically bulk load data from a flat file.
2.Rebuild indexes on the SALES table after completion of the bulk load.
How would you create these jobs?

A.
Create both jobs by using Scheduler raised events.

B.
Create both jobs using application raised events.

C.
Create one job to rebuild indexes using application raised events and another job to perform bulk load using
Scheduler raised events.

D.
Create one job to rebuild indexes using Scheduler raised events and another job to perform bulk load by
using events raised by the application.