Answer:
In this case, Jack's "human/interpersonal skills" failed. The skills that Jack is failing to use are important for "managers."
Explanation:
From the statement above, we can assume that Jack's position is superior to that of Samantha. He is, probably, the manager. However, he yelled at Samantha last week because she was late. In this case, Jack failed in his "human skills." This is also known as "interpersonal skills," which is a set of skills related to interacting effectively with other people.
A manager with good interpersonal skills knows how to listen to his subordinates. In fact, he should be an active listener, which means he should be observant upon listening to other people's explanation. He should also provide advice or solve problems without yelling.
Thus, this explain the answers.