Out of the given options, pick the one which best expresses the following sentence in indirect speech: The teacher says, "I go to gym every morning."

The teacher says that he goes to gym every morning is correct because the reporting verb says is present, so the simple present does not backshift. The teacher said that he used to go...: changes says to said and adds the new meaning used to. The teacher said that he goes...: changes the reporting verb from present to past. The teacher says that he went...: wrongly backshifts the habitual present despite the present reporting verb.