You are evaluating whether to use express installation files as an update distribution mechanism. Which technical requirement is met by using the express installation files？（）

• A、Newly implemented technologies must minimize the impact on LAN traffic.
• B、Newly implemented technologies must minimize the storage requirements.
• C、Newly implemented technologies must minimize the amount of bandwidth used on Internet  connections.
• D、All patches and updates must be tested in a non-production environment before they are applied to production servers.