Given the following state transition diagram, which of the test cases below will cover the following series of state transitions: $S1 \to S0 \to S1 \to S2 \to S0$? (Pic 4_1) \nmermaid\ngraph LR S0((S0)) -->|A| S1((S1)) S1((S1)) -->|B| S2((S2)) S2((S2)) -->|C| S0((S0)) S1((S1)) -->|D| S0((S0))