You work in a company which is named Wiikigo Corp. The company uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance. You are going to use the data collector to gather performance data periodically on all instances. You must store all collected data in the same database. This database is hosted on a single instance. Every five hours, you have to collect and load performance data in the management data warehouse. Which data collection process should you implement? （） 

• A、You should create a cached data collection 
• B、You should create an on-demand non-cached data collection 
• C、You should create a scheduled non-cached data collection. 
• D、You should create two different SQL Agent jobs. The two jobs are scheduled at the same time. One job uploads the data collection and the other job creates a data collection.