The correct answer to this open question is the following.
The stage of career development Igor is experiencing is stage number 2, the Establishment stage.
Igor has found his first real job and he is noticing that other executives and their bosses have a master's degree. So he realized that in order to climb the corporate ladder, he has to consider studying a master's degree too. In this stage, the employee is motivated to learn and grow. It is willing and able to accept more responsibilities to prove to its boss what he is capable of doing and accomplish.
The other stages are 1) Exploration, 3) Mid-career, 4) Late-career, and 5) Decline.