Explanation:

- The statement says Yajur assesses the true potential of his subordinates and motivates them to realise their full potential.

- Option 1: Leadership — This is about influencing, guiding, and inspiring team members to achieve goals. Leaders set examples and help others grow.

- Option 2: Communication — This involves sharing information clearly and efficiently among team members, but doesn’t necessarily include motivating or assessing potential.

- Option 3: Supervision — This is about overseeing work to ensure tasks are done as required, not specifically about inspiring or motivating.

- Option 4: Motivation — This is about encouraging people to perform better and helping them realise their potential. The keyword here is motivation, as the statement focuses on motivating subordinates.

Correct Answer is Option 4: Motivation