What was the basic moral basis of the socialist criticism of private profit?

Correct answer: Private profit was often based on others' labour and inequality

Socialist criticism of private profit was based on the moral concern that wealth could be gained from the labour of people who did not own the factory, tools, or land. In an unequal system, owners may receive profit while workers receive wages that are insufficient compared with the value they help create. Socialists therefore connected private profit with unequal power, exploitation, and a lack of social justice. Their criticism was not based on loyalty to a king.

Option A states this moral argument most clearly: private profit was often connected with the labour of others and with inequality. Options B and D are incorrect because they ignore the social effects of ownership and profit. Option C is also incorrect because socialist criticism was directed at economic relations, not at whether the king became weaker. The correct choice is therefore A.