The figure below shows the nodes (A-I) and capacities (labelled on arcs in TB/s) of a computer network. The firm would like to know how much information can flow from node A to node I. 
Which nodes are the sink and source for this problem?
Definitions:
Mirror-image Perceptions
In conflict situations, it refers to the tendency of parties to see themselves in positive terms and the enemy in negative terms, often mirroring each other’s perceptions.
Altruistic Goals
Objectives or intentions aimed at bringing benefits or well-being to others without expecting personal gain.
Social Environment
The immediate physical and social setting in which people live or in which something happens or develops.
Social Psychologist
A professional who studies how individuals' thoughts, feelings, and behaviors are influenced by the actual, imagined, or implied presence of others.
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