Which of the following statements with regard to the speech of Mahatma Gandhi at the opening of the Banaras Hindu University are correct? 1. He charged the Indian elite with a lack of concern for the labouring poor. 2. He asserted that our salvation can come only through the farmers. 3. He highlighted the plight of the untouchables. 4. He promised to take up the cause of the mill owners of Ahmedabad. Select the correct answer using the code given below.