Which sentence corrects parallel structure in a list?

Which sentence corrects parallel structure in a list?

• A. The goal is to improve efficiency, to reduce costs, and to increase employee satisfaction.
• B. The goal is to improve efficiency, to reducing costs, and to increase employee satisfaction.
• C. The goal is to improving efficiency, to reduce costs, and to increase employee satisfaction.
• D. The goal is to improve efficiency, reduce costs, and increasing employee satisfaction.

Answer: (A)