Answer:
Letter a is correct. Interpersonal.
Explanation:
In this question, middle managers have a deficiency in interpersonal skills, as they are not sensitive to the needs of employees.
Sensitivity training is a strategy that can help managers to develop interpersonal skills and abilities, as this is an extremely relevant feature for business.
This ability is related to the ability to communicate and interact with other people. In a managerial position, whose function is to coordinate and supervise employees, interpersonal skills are even more prominent, as the manager's conduct and positioning will influence his subordinates, so that the leader must be the main example of good relationships with others, attention to the needs of employees and clear communication, in order to create a positive organizational climate, where the motivation and satisfaction of employees are taken as a key element in increasing productivity and organizational effectiveness.