Answer: C . Delegating
Explanation: Tom's group is able and willing. Hence, the workers supervised by Tom are capable, ready and efficient to execute their tasks with no supervision.
Hence, Tom should delegate the tasks to his reliable employees and channel his available time to perform other high value tasks as a superior or supervisor.
Delegation will also motivate Tom's team to feel more recognized and dependable in the discharge of their tasks and this boosts the team self esteem and effectiveness which will be beneficial to the company as a whole