В каком предложении ровная речь превращена в косвенную правильно? Ann said to

В каком предложении прямая речь преобразована в косвенную правильно?
Ann said to her sister, We have to visit our parents
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Ann said to her sister they have to visit parents.

Ann said to her sister that we had to visit parents.

Ann said to her sister that they had to visit their parents.

Ann said to her sister, we have to visit our parents.