Which of the Following Statements About Different Service Applications' Storage

Which of the following statements about different service applications' storage performance and capacity requirements are correct?

A) Compared with an email application, an enterprise OLTP/OLAP database requires higher storage performance.
B) Compared with picture and video applications, a large-sized relational database requires a larger storage capacity.
C) Compared with the content delivery network application, the backup and archive services require higher storage performance.
D) Compared with a real-time online service system, scientific computing requires higher storage performance.