Process OSPF 1 is redistributing routes from process OSPF 2. Which of the following methods may be used to set the metrics of the redistributed routes?（）

• A、Let the metrics default.
• B、Use each redistributed route's OSPF metric using the redistribute command's metric transparent keywords.
• C、Set the metric using the default - metric router subcommand.
• D、Redistribution is not allowed between two OSPF p rocesses.