|q⟩ Bad Qubits

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Multiple choice
A 3-qubit bit-flip code uses two parity-check (stabilizer) measurements Z0Z1Z_0 Z_1 and Z1Z2Z_1 Z_2, giving syndrome (s1,s2)(s_1, s_2). The lookup table is: (1,0)(1,0) -> error on qubit 0, (1,1)(1,1) -> error on qubit 1, (0,1)(0,1) -> error on qubit 2, (0,0)(0,0) -> no error. Which qubit index does syndrome (1,1)(1,1) identify as flipped?