The correct answer is: B. lead time.
Lead time is the time between the placement of an order and the receipt of the goods or services ordered. It is typically measured in days or weeks. Lead time can vary depending on a number of factors, such as the type of product or service being ordered, the location of the supplier, and the shipping method.
Allowed time is the amount of time that is allotted for a task to be completed. It is typically set by management and is based on the estimated time required to complete the task. Allowed time can be adjusted based on factors such as the complexity of the task, the experience of the worker, and the availability of resources.
Accepted time is the amount of time that is actually required to complete a task. It is typically measured by tracking the time it takes workers to complete tasks. Accepted time can be used to evaluate the efficiency of workers and to identify areas where improvements can be made.
Fixed time is a specific time that is set for a task to be completed. It is typically used in manufacturing and assembly operations where there is a need to maintain a consistent production schedule. Fixed time can be used to improve efficiency and to reduce costs.
In conclusion, the time required to process and execute an order is called lead time. Lead time is typically measured in days or weeks and can vary depending on a number of factors.