1) Each item in the following unordered binary tree is printed during a traversal using a postorder iterator. Select the correct sequence in which the items are printed.

A) A, B, C, D, E, F, G

B) A, B, D, E, C, F, G

C) D, E, B, F, G, C, A

D) D, B, E, A, F, C, G

2) Each item in the following unordered binary tree is printed during a traversal using a level-order iterator. Select the correct sequence in which the items are printed.

A) A, B, C, D, E, F, G

B) A, B, D, E, C, F, G

C) D, E, B, F, G, C, A

D) D, B, E, A, F, C, G

3) Each item in the following unordered binary tree is printed during a traversal using a preorder iterator. Select the correct sequence in which the items are printed.

A) A, B, C, D, E, F, G

B) A, B, D, E, C, F, G

C) D, E, B, F, G, C, A

D) D, B, E, A, F, C, G

4) Each item in the following unordered binary tree is printed during a traversal using an inorder iterator. Select the correct sequence in which the items are printed.

A) A, B, C, D, E, F, G

B) A, B, D, E, C, F, G

C) D, E, B, F, G, C, A

D) D, B, E, A, F, C, G

5) What order of traversal is shown in the picture?

A) level-order

B) preorder

C) postorder

D) inorder

B) L C