Question Option:
A. deploy
B. get promoted
C. gain position
D. mature and develop
Answer: MATURE AND DEVELOP
Joint learning is a method of acquiring information, knowledge and facts that involves a task having multiple sub-tasks that you all train together.
From the options given the best option is mature and develop this is because, the statement after there talking about acquiring knowledge, skills, abilities have to do with maturing and developing and not deploying, promotion or gaining position.