This graph will be used for the folloving graph traversal questions. ABCDEF would be a valid sequence for a (choose all that apply) topological sort BFS DFS preorder traveral inorder traversal postorder traversal none of the above QUESTION 2 ABDECF would be a valid sequence for a (choose all that apply) topological sort BFS DFS preorder traveral inorder traversal postorder traversal none of the above DBEAFC would be a valid sequence for a (choose all that apply) topological sort BFS DFS preorder traveral inorder traversal postorder traversal none of the above QUESTION 4 ACBEDF would be a valid sequence for a (choose all that apply) topological sort BFS DFS preorder traveral inorder traversal postorder traversal none of the above