What kind of challenge was the surrender of titles in the Non-Cooperation Movement?

Correct answer: Rejecting colonial honour and moral legitimacy

The governing concept is symbolic and moral non-cooperation. Colonial titles, such as honours granted by the government, publicly associated recipients with the prestige and legitimacy of British rule. Returning or refusing them signalled that Indians no longer accepted colonial authority as a source of honour. Thus option A is correct. Accepting taxes, promoting foreign cloth, or strengthening the army would not represent rejection of colonial legitimacy and would instead support the regime.