In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'. He told me the same(A)/story which he told(B)/you yesterday.(C)/No error(D)
_________ says that the marginal product of a factor input initially rises with its employment level. But after reaching a certain level of employment, it starts falling.