Who among the following were the founders of the “Hind Mazdoor Sabha”

Who among the following were the founders of the “Hind Mazdoor Sabha” established in 1948 ?

B. Krishna Pillai, E.M.S. Namboodiripad and K.C. George
Jayaprakash Narayan, Deen Dayal Upadhyay and M.N. Roy
C.P. Ramaswamy Iyer, K. Kamaraj and Veeresalingam Pantulu
Ashok Mehta, T.S. Ramanujam and G.G. Mehta
This question was previously asked in
UPSC IAS – 2018
The Hind Mazdoor Sabha (HMS) was founded on December 24, 1948, by socialists, Forward Bloc followers, and independent unionists. The key founders included Ashok Mehta, T.S. Ramanujam, and G.G. Mehta.
HMS is one of the major trade union federations in India, formed after a split from the Hind Mazdoor Panchayat and the Indian National Trade Union Congress.
It is affiliated with the International Trade Union Confederation (ITUC). The other options list individuals associated with different political or social movements. B. Krishna Pillai and E.M.S. Namboodiripad were prominent communists. Jayaprakash Narayan was a socialist leader, Deen Dayal Upadhyay was associated with the Jan Sangh, and M.N. Roy was a radical humanist and communist. C.P. Ramaswamy Iyer was Dewan of Travancore, K. Kamaraj was a Congress leader, and Veeresalingam Pantulu was a social reformer.