<prompt> CO acts by inhibiting which component of respiratory chain ?Cytochrome bcytochrome C oxidaseNADH CoQ reductaseOxidative phosphorylation  <response>: Inhibitors of Electron transpo chain Respiratory chainComplex I :- Barbiturates amobarbital, piercidin A, rotenone, chlorpromazine, guanithidine.Complex II :- Carboxin, TTFA, malonate.Complex III :- Dimercaprol, BAL, actinomycin A, Naphthyloquinone.Complex IV cytochrome c oxidase :- Carbon monoxide CO, cyanide CN, H2S, azide N3- 