Final answer:
The term 'Run Lane' is not a recognized activity diagram notation in UML; the correct term is 'Swimlane'. Other options listed are valid elements of an activity diagram notation.
Step-by-step explanation:
The activity diagram notation is part of the Unified Modeling Language (UML) used in software engineering to represent workflows or processes. Looking at the options provided, 'Control Flow', 'Initial node', and 'Activity' are valid elements of an activity diagram. However, 'Run Lane' is not a standard element or notation in UML activity diagrams. Instead, the correct term is 'Swimlane', which is used to organize actions in an activity diagram into groups, typically representing different responsibilities or participants in the workflow.