Final answer:
Networking would be most likely to help a manager accomplish a. increasing efficiency by gaining access to new ideas, resources, and best practices from other professionals in the industry.
Step-by-step explanation:
Networking would be most likely to help a manager accomplish increasing efficiency. By networking with other professionals in the industry, a manager can gain access to new ideas, resources, and best practices that can help streamline processes and eliminate inefficiencies.
For example, a manager could attend industry conferences and exchange ideas with peers, or join professional networking groups to learn from others' experiences and improve their own efficiency.