The correct answer is A. Minimum.
The direct cost of a project is the cost of the resources that are directly used to complete the project. These resources include labor, materials, and equipment. The direct cost of a project is typically lowest when the project is completed in its normal time. This is because the project team is able to use the most efficient methods and resources when the project is completed on time.
If the project is completed early, the direct cost of the project may be higher. This is because the project team may need to use overtime or premium resources to complete the project early. If the project is completed late, the direct cost of the project may also be higher. This is because the project team may need to pay for additional resources, such as overtime or premium resources, to complete the project on time.
In conclusion, the direct cost of a project is typically lowest when the project is completed in its normal time.