Question

which one of the following is incorrect?
A.a competitive inhibitor reacts reversibly with the enzyme to form enzyme inhibitor
B.in competitive inhibition the inhibitor molecule is not chemically changed by the enzyme
C.the competitive inhibitor does not affect the rate of breakdown of the enzyme substrate complex
D.the presence of the competitive inhibitor decreases the KM of the enzyme for the substrate.
(the answer is d ,can anyone kindly explain)​

Answer 1

i think correct answer is C...

Answer 2

D one is correct what we have to explain