Rules of financial reporting (GAAP) require (4pts) that direct manufacturing costs and a fair share of indirect manufacturing costs be assigned to products. that only producing department costs be assigned to products. that only direct manufacturing costs be assigned to products. that only indirect manufacturing costs be assigned to products. Which joint cost allocation method is described by the following statement? Joint cost is prorated to the products on the basis of each product's share of units. O physical units method O weighted average method O sales-value-at-split-off method net realizable value method