All enzymes of the TCA cycle are located in the mitochondrial matrix except one which is located in inner mitochondrial membranes in eukaryotes and in cytosol in prokaryotes. This enzyme is 

• A

  isocitrate dehydrogenase.

• B

  ketoglutarate dehydrogenase.

• C

  succinate dehydrogenase.

• D

  lactate dehydrogenase.