Explanation:

Explanation:  Option (a) is correct: The Royal Commission on Labour in 1931 pointed out the need for systematic collection of labour statistics.  It observed that the policy must be built on facts as the uncertainty of facts would lead to confusion and con fl ict regarding its aim. Supplementary notes: Whitely commission  The Royal Commission on Labour (or the Whitley Commission on Labour) was a Royal commission set up in 1929 to investigate the working conditions on plantations in India.  The report surprised many by concurring with the criticisms of Mahatma Gandhi and others that poverty was the cause of India’s social and industrial problems.  It was also critical of British employers’ role in perpetuating the problems.