Final answer:
Managers need technical, human, and conceptual skills. The correct answer is option E.
Step-by-step explanation:
The three critical skills that managers need in managing, as proposed by Robert L. Katz, are technical, human, and conceptual skills.
Technical skills refer to the knowledge and proficiency in specific tasks or activities related to a particular job or industry.
Human skills are the ability to work with and understand people, including effective communication, teamwork, and leadership.
Conceptual skills involve the ability to think abstractly, analyze complex situations, and make strategic decisions.