Concept:The Swaraj flag was designed by Mahatma Gandhi in 1921 to symbolize Indian nationalism and self-reliance.Explanation:In 1921, Mahatma Gandhi designed the Swaraj flag. It was a tricolour flag with red, green, and white bands. At its centre was a spinning wheel (charkha), representing the Gandhian ideal of self-help and economic independence. This flag became a powerful symbol of defiance against British rule and helped unite Indians across regions and communities, fostering a collective national identity.Answer:Option A: Mahatma Gandhi.