help with explanations

Please complete Discussion Questions as follows: You can insert lines and a text box for typing purposes. I. Why are overhead costs allocated to products and not traced to products as direct materials and direct labor are? II. Explain why a single plantwide overhead rate is based on two assumptions. What are those assumptions? If plantwide overhead rates are allowed for reporting costs to external users, why might a company choose to use a more complicated and more expensive method for assigning overhead costs to products? IV. What is the first step in applying activity-based costing? V. Activity-based costing is generally considered more accurate than other methods Jof assigning overhead. If this is so, why do all manufacturing companies not use