Final answer:
In flowcharts, a circle (Option B) is used as an on-page connector to continue process flow, allowing for a clean and organized representation of complex processes.
Step-by-step explanation:
In a flowchart, an on-page connector is used to continue the process flow when it cannot be contained within a single page or needs to be clearly divided within a complex flowchart. The correct symbol for an on-page connector in a flowchart is a circle (Option B). This circumferential shape typically contains a letter or number indicating a jump; the corresponding circle elsewhere on the same page shows where to continue the flow from that point. It functions like a 'go to' label, helping to avoid crossing lines and reduce clutter in the diagram.