The correct options are
C Back to Vedas - Dayananda Saraswathi
D Sambad Komudhi - Raja Ram Mohan Roy
Dayananda Saraswathi aimed to spread Vedic knowledge in the Indian society. The phrase, "Back to Vedas", was coined to inspire the rediscovery of ancient scriptures. He highlighted his ideas in a book called "Satyarth Prakash" in 1875. "Sambad Komudhi" was a journal started by Raja Ram Mohan Roy.