Which One Among them is the Example of Competitive Inhibition of an Enzyme?

Q. Which One Among them is the Example of Competitive Inhibition of an Enzyme?

A.            Succinic dehydrogenase by malonic acid

B.            Cytochrome oxidase by cyanide

C.            Hexokinase by glucose-6-phosphate

D.            Carbonic anhydrase by carbon dioxide

Answer: Succinic dehydrogenase by malonic acid