Option 1: Kamaladevi Chattopadhyay - Kamaladevi Chattopadhyay was a prominent socialist activist during the Indian independence movement. She played a crucial role in persuading Gandhiji to not restrict the salt march protest to men alone. Kamaladevi believed in gender equality and fought for women`s rights in India. She argued that women should be given an equal opportunity to participate in the protest and contribute to the freedom struggle. Gandhiji was convinced by her arguments and decided to make the salt march protest open to all, regardless of gender.

Option 2: Sarojini Naidu - Sarojini Naidu was a leading figure in the Indian independence movement and a close associate of Gandhiji. However, there is no evidence to suggest that Sarojini Naidu played a specific role in persuading Gandhiji to include women in the salt march protest.

Option 3: Matangini Hazra - Matangini Hazra was a freedom fighter and a notable figure in the Indian independence movement. However, there is no record of her persuading Gandhiji to include women in the salt march protest.

Option 4: Mithuben Petit - Mithuben Petit was a social worker and a follower