Which of these is NOT demonstrated by the available data? Select one: a. Government-financed R&D as a percentage of GDP is lower in the UK than the average for the OECD. b. Large firms (250+ employees) have higher labour productivity in almost all countries. c. Management practice scores for businesses in Wales are - on average - lower than in other regions of the UK. d. The UK economy returned to its trend growth rate of labour productivity after the global financial crisis