The correct answer is Option 2: 2, 3 and 4.

Statement 1 states that the Salt March was deliberately ignored by the European media, which is incorrect. The Salt March did receive coverage from the European press, although it may not have been as extensive as the coverage it received in the American and Indian press.

Statement 2 is correct. The Salt March was widely covered by the American and European press. Mahatma Gandhi`s act of disobedience and civil resistance captivated the attention of the international media, particularly in the United States and Europe.

Statement 3 is correct. The Salt March was indeed the first nationalist activity in which women participated in large numbers. Women played a significant role in the march, highlighting their importance in the Indian independence movement.

Statement 4 is correct. The Salt March did impress upon the British the urgent need to devolve more power to Indians. The mass participation and nonviolent nature of the protest showcased the strength and determination of the Indian people, leading to increased demands for self-governance.

In summary, statements 2, 3, and 4 are correct, while statement 1 is incorrect.