Option 1, "Refusal to attend Government Durbars and official functions," is correct. Mahatma Gandhi`s Non-Cooperation Movement included the act of boycotting British institutions and refusing to attend events organized by the government as a form of protest.

Option 2, "Participation in elections," is incorrect. Mahatma Gandhi`s Non-Cooperation Movement aimed to boycott British institutions and not participate in their processes, including elections. Gandhi believed that participating in the elections would legitimize the British presence in India.

Option 3, "Participation in rallies for the boycott of foreign goods," is correct. One of the key elements of the Non-Cooperation Movement was the promotion of Swadeshi, which involved boycotting foreign goods and promoting the use of locally made products. Gandhi encouraged people to participate in rallies and protests to raise awareness about the boycott.

Option 4, "Surrender of titles," is correct. As a symbol of rejecting British authority and colonialism, Mahatma Gandhi urged people to surrender their titles and honors bestowed upon them by the British government.

In summary, options 1, 3, and 4 are correct, while option 2 is incorrect.