You are the project manager for the NGH project.

If Activity B uses seven days of float, which it can, it does not allow Activity D, G, or J to have any float available. This is because the total duration of path ABDGJK cannot exceed 30 days, the duration of the project. If Activity B uses the seven days of float, then the path meets the project's duration at Day 30.

Answer options B and A are incorrect. These are not the valid calculation.

Answer option C is incorrect. Seven represents the amount of float available on Activity G before Activity B uses the available float.