Верен следующий вариант предложения ‘london saw a major structural change to local government in the 1960s.’ в косвенной речи:

выберите один ответ:
1)they said that london saw a major structural change to local government in the 1960s.
2)they said that london had seen a major structural change to local government in the 1960s.
3)they said london saw a major structural change to local government in the 1960s.
4)they asked if london had seen a major structural change to local government in the 1960s.