Marcus heads a garbage disposal firm called The Cleanout Company. Recently, his firm was under scrutiny from environmental organizations. To counter any possible negative claims by these organizations against his company, Marcus assigned 5 of his junior managers to study the issue and propose plans or initiatives that can make the company look more environmental friendly. He also instructed senior managers to mentor their juniors as they devised new ideas. Which of the following type of team training method did Marcus employ here?
A. Action learning
B. Adventure learning
C. Cross-training
D. Internship
E. Apprenticeship
