How should the servant leader apply emotional intelligence to leverage this situation to benefit the project?

An agile team member received certification on a new tool: however, this learn member is complaining that the rest of the team is not using the tool due to lack of knowledge.

How should the servant leader apply emotional intelligence to leverage this situation to benefit the project?
A . Request budget to reward the team member so others will be motivated to obtain the same certification
B. Promote the team member to product owner to leverage the new knowledge with the clients
C. Provide an incentive to team members who begin using the new tool on this project.
D. Ask the team member to use their recently acquired knowledge to develop and provide training to the team

Answer: D