The figure given below shows the conversion of a substrate into product by an enzyme. In which one of the four options $(A-D)$ are the components of the reaction labeled as $A, B, C,$ and $D$ identified correctly?

• A
  $A$: Potential energy, $B$: Transition state, $C$: Activation energy without enzyme, $D$: Activation energy with enzyme
• B
  $A$: Transition state, $B$: Potential energy, $C$: Activation energy without enzyme, $D$: Activation energy with enzyme
• C
  $A$: Potential energy, $B$: Transition state, $C$: Activation energy with enzyme, $D$: Activation energy without enzyme
• D
  $A$: Activation energy, $B$: Transition state, $C$: Activation energy without enzyme, $D$: Potential energy