Right choice is (c) clark oxygen electrode
The explanation: The simplest amperometric biosensor is clark oxygen electrode, which consists of a platinum cathode at which oxygen is reduced and a silver/silver chloride reference electrode. Glass electrodes is an ion-selective electrode which has very thin hydrated glass membrane which generates a transverse electrical potential. Thermistors are used to measure the temperature changes in a calorimetric biosensor. Solid-state electrode is an ion-selective electrode which has thin membrane of a specific ion conductor made from a mixture of silver sulphide and a silver halide.