Edit the following sentence for parallelism: The project requires careful planning, attention to detail, and to be completed on time.

A. The project requires careful planning, attention to detail, and to complete the work efficiently.

B. The project requires careful planning, attention to detail, and completion on budget.

C. The project requires careful planning, attention to detail, and completion on time.

D. The project requires careful planning, attention to detail, and to be finished on schedule.