The correct option is B Gadar
Ghadar party was an extremist revolutionary organisation founded by Sikhs in the US and Canada with the aim of securing India's independence from British rule. It was founded by Lala Hardayal and Sohan Singh Bhakna in the year 1913. The party had its headquarters in San Francisco. Its key members were Bhai Parmanand, Kartar Singh Sarabha, Abdul Hafiz Mohamed Barakatullah, Rashbehari Bose and Gulab Kaur.