Correct Option: B

The sensitive biological element (biological material (e.g. tissue, microorganisms, organelles, cell receptors, enzymes, antibodies, nucleic acids, etc.), a biologically derived material or biomimic component that interacts (binds or recognises) the analyte, the transducer or the detector element (works in a physicochemical way; optical, piezoelectric, electrochemical, etc.) that transforms the signal resulting from the interaction of the analyte with the biological element into another signal. Biosensor reader device with the associated electronics or signal processors that are primarily responsible for the display of the results in a user-friendly way.