In the energy diagram for a biological reaction given below, identify the correct labeling for A, B, and C.

A - Transition state, B - Activation energy in the absence of an enzyme, C - Activation energy in the presence of an enzyme.

A - Transition state, B - Activation energy in the presence of an enzyme, C - Activation energy in the absence of an enzyme.

A - Activation state, B - Activation energy in the absence of an enzyme, C - Activation energy in the presence of an enzyme.

A - Activation state, B - Activation energy in the presence of an enzyme, C - Activation energy in the absence of an enzyme.