The same Web site is visited for the second time using a branch SRX Series Services Gateway configured with SurfControl integrated Web filtering.Which statement is true?（）

• A、The SRX device sends the URL to the SurfControl server in the cloud and the SurfControl server provides the SRX. 
• B、The SRX device sends the URL to the SurfControl server in the cloud and the SurfControl server asks the SRX device previously visited.
• C、The SRX device looks at its local cache to find the category of the URL.
• D、The SRX device does not perform any Web filtering operation as the Web site has already been visited.