The area of blank space that displays to the left, right, top, and bottom of a document or worksheet.

In the following code to add an edge in the LinkedDirectedGraph class, what is the missing code? def addEdge(self, fromLabel, toLabel, weight): fromVertex = self.getVertex(fromLabel) fromVertex.addEdgeTo(toVertex, weight) self.edgeCount += 1

A. self.getVertex(toLabel) = fromVertex B. fromVertex.addEdgeTo(fromVertex, weight) C. self.weight += 1 D. toVertex = self.getVertex(toLabel)

The accompanying figure displays a basic ____.

A. schedule graphic B. calendar C. Gantt chart D. network diagram