The correct answer is C. 1 and 2.
Ram Dayal Tiwari and Ghanshyam Singh Gupta were two of the most prominent lawyers in Durg who gave up their practice during the Non-cooperation Movement. They were inspired by Mahatma Gandhi’s call for non-violent resistance to British rule, and they believed that giving up their practice was a way to show their support for the movement.
Pyarelal Singh and Ratnakar Jha were also lawyers in Durg, but they did not give up their practice during the Non-cooperation Movement. It is possible that they were not as inspired by Gandhi’s call as Tiwari and Gupta, or that they felt that they could better serve the movement by continuing to practice law.
It is also possible that Singh and Jha were simply unable to give up their practice. They may have had families to support, or they may have been too invested in their careers to give them up. Whatever the reason, they did not join Tiwari and Gupta in giving up their practice during the Non-cooperation Movement.