Final answer:
The e-commerce transaction diagram should show 8 transitions.
Step-by-step explanation:
The state transition diagram for the e-commerce transaction has 8 states and 8 transitions. Each of the 8 states represents a different step in the transaction process, and each transition represents a change from one state to another.
In the given diagram, there are 8 arrows connecting the states, which represent the 8 transitions. These transitions show how the system can move from one state to another based on user actions or system events.
Therefore, the correct answer is C. 8 transitions should be shown on the state transition diagram.