IN_AN_EXPERIMENT_TO_CHECK_MUTAGENICITY_OF_A_SUBSTANCE,_WE_FEED_THE_MUTAGEN_TO_A_RAT_AND_THEN_USE_THE_RAT_________EXTRACT_WITHIN_THE_MEDIA._THIS_ENSURES_____________?$

• A. Kidney; the mutagen can be at a higher concentration
• B. Liver; the media has adequate iron from rat RBC
• C. Liver; the mutagen is processed
• D. Kidney; the mutagen is broken down