Can someone please help me in finding out the accurate answer from the following question. Alfred Marshall classification of analytical time specified that in long run it is: (i) Not possible to differ technology and at least one resource is fixed and hence at least one kind of cost is as well fixed. (ii) Not possible to move resources from one industry to the other, however technological knowledge advances in the response to gain opportunities. (iii) Possible to differ technology, however at least one resource is fixed and as a result at least one form of cost is as well fixed. (iv) Possible to differ all the resources and costs and to move among industries, however no technology is fixed.