Correct Answer: (a) Lala Hardayal
Solution:In 1913 at San Francisco, Sohan Singh Bhakna founded "Hindustani workers of the Pacific Coast" organization. This organization published a newspaper Ghadar, later the organization was known as the Ghadar Party. Lala Hardayal was also one of its founder members along with Bhakna. Other members of Ghadar Party were Raja Mahendra Pratap, Abdul Rehman, Madam Bhikaji Kama, Bhai Parmanand, Kartar Singh Sarabha and Pandit Kanshiram. Since the question is about the founder of Ghadar Party and Sohan Singh Bhakna’s name is not given, therefore option “a” is correct.