Consider the following statements about Dr. Ram Manohar Lohia:
1. He believed the Satyagraha without constructive work was like a sentence without a verb.
2. He wrote his PhD thesis paper on the topic of Salt Satyagraha, focusing on Mahatma Gandhi's socio-economic theory.
3. He recognized that caste, more than class was the huge stumbling block to India's progress.
Which of the statement given above is/are correct?
Correct option is D. All of these