The correct answer is D. All of the above.
Phool Singh, Swami Swatantratanand, and Acharya Bhagwan Dev were all important Arya Samaj missionaries of Haryana. They played a significant role in spreading the Arya Samaj movement in the region.
Phool Singh was born in 1867 in the village of Jhajjar in Haryana. He was a disciple of Swami Dayanand Saraswati, the founder of the Arya Samaj. Phool Singh was a great orator and preacher. He traveled extensively throughout Haryana, spreading the message of the Arya Samaj. He also established many schools and colleges in the region.
Swami Swatantratanand was born in 1880 in the village of Rewari in Haryana. He was a disciple of Swami Shraddhanand, a prominent Arya Samaj leader. Swami Swatantratanand was a great scholar and writer. He wrote extensively on the Arya Samaj philosophy and its teachings. He also established many schools and colleges in the region.
Acharya Bhagwan Dev was born in 1885 in the village of Jind in Haryana. He was a disciple of Swami Shraddhanand. Acharya Bhagwan Dev was a great social reformer. He worked tirelessly to uplift the downtrodden and oppressed people of Haryana. He also established many schools and colleges in the region.
All three of these men made significant contributions to the Arya Samaj movement in Haryana. They helped to spread the message of the Arya Samaj and to improve the lives of the people of the region.