Final answer:
As a manager moves from lower-level management to upper-level management, interpersonal skills become more important.
Step-by-step explanation:
As a manager moves from lower-level management to upper-level management, interpersonal skills become more important.
These skills involve the ability to communicate effectively, build relationships, and collaborate with others.
Upper-level managers often have more responsibility for leading teams and making strategic decisions, so strong interpersonal skills are crucial for successful management.