单选题For the following items，what is the mathematical relationship between the committed information rate （CIR）， committed burst （Bc）， and committed rate measurement interval （Tc）？（）ACIR=TC/BcBCIR=Be/TcCTc=CIR/BcDTc=Bc/CIR
单选题
For the following items，what is the mathematical relationship between the committed information rate （CIR）， committed burst （Bc）， and committed rate measurement interval （Tc）？（）
A
CIR=TC/Bc
B
CIR=Be/Tc
C
Tc=CIR/Bc
D
Tc=Bc/CIR
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