Find out th A. (i) is correct

B. (ii) and (iii) are correct

C. (i) and (iv) are correct

D. iii) is correct

i) is incorrect. German trade unions were meant to protect the rights of the manufacturers, and control steep rise in prices.

ii) is correct. Germany was not a single state, but consisted of several nation-states, with Prussia having dominance over wealth and administrative power. This was seen as a major hurdle to industrialisation.

iii) is correct. Karl Marx advocated for scientific socialism to protect the rights of the workers against the mill-owners and bourgeois.

iv) is incorrect. Germany was well bestowed with coal and iron supplies.