Concept:The book 'Satyartha Prakash' was written by the founder of Arya Samaj, who advocated a return to Vedic principles.
Explanation:Swami Dayanand Saraswati is the author of 'Satyartha Prakash', a work explaining the true meaning of the Vedas.
He also wrote 'Satyarth Bhumika', 'Rigvedadi Bhashya', 'Bhumika', and 'Sanskarvidhi'.
His famous slogan was 'Back to the Vedas'. He founded the Arya Samaj in Bombay.
He translated the Vedas and produced three major books: Satyartha Prakash, Veda Bhasya Bhumika, and Veda Bhasya.
The Dayanand Anglo Vedic (D.A.V.) schools were established based on his philosophy.
For reference, other reformers and their missions are shown below:
Answer:Swami Dayanand Saraswati (Option A)