Production in the northeast centered on the development of:
agriculture
industry
irrigation

The development of industry was the center of North East production. Industrial activity was the result of the abundant supply of minerals like salt and coal. This growth is now widespread across the whole of the regions of England, particularly the chemical industry where pharmaceuticals spread across the middle regions of England.

john maynard keynes developed new economic theories in response to the stock market crash of 1929. great depression of the 1930s. first and second world wars. economic boom of the 1950s.

if it were me, i would pick c. c is the best answer because it's basically saying go on a non-violent strike for india