The correct answer is C. Arahnath.
Ajitnath was the 16th Tirthankara of Jainism. He was born in Ayodhya, India, and attained enlightenment under a banyan tree. He is said to have lived for 84,000 years and to have died in Sammed Shikharji, Gujarat, India.
Ajitnath is also known as Ajitanath, Ajita, and Ajitasena. He is depicted as a white-colored Tirthankara with a snake hood over his head. His symbol is the conch shell.
The other options are incorrect because they are not the names of Tirthankaras. Padprabhu is a name given to Vishnu, Acharya Aridaman is a name given to a Jain monk, and Naminath is the 17th Tirthankara of Jainism.
Padprabhu is a name given to Vishnu, the Hindu god of preservation. He is also known as Narayana, Hari, and Vasudeva. Padprabhu is often depicted as a blue-skinned man with four arms. He is said to have created the universe and to be its ultimate protector.
Acharya Aridaman is a name given to a Jain monk who lived in the 12th century CE. He was a disciple of Acharya Hemachandra and is considered to be one of the most important figures in Jain history. Acharya Aridaman is known for his writings on Jain philosophy and for his efforts to promote Jainism.
Naminatha is the 17th Tirthankara of Jainism. He was born in Ayodhya, India, and attained enlightenment under a banyan tree. He is said to have lived for 84,000 years and to have died in Sammed Shikharji, Gujarat, India.
Naminatha is also known as Nami, Namideva, and Namisena. He is depicted as a blue-colored Tirthankara with a snake hood over his head. His symbol is the conch shell.