Data Structure, HELP PLEASE & just give me the final answer

Q1

Q2

Q3

Given the following graph, which of the following will be the BFS visiting sequence, starting at vertex A? 20 23 4 15 1 36 9 E 25 16 28 3 17 ABCDFGE O ABDCFGE O ABCDEFG O ABDFGEC QUESTION 10 Topological sort can be applied to which of the following graphs? O Undirected Acyclic Graphs O Directed Acyclic Graphs O Directed Cyclic Graphs O Undirected Cyclic Graphs Given the graph, which of the following is not a valid topological sort order? x Z A B F D (M E F.B.M.Z.X.A.C.E.D F.B.A.M.Z.X.C,E,D F.B.M.A.Z.X.C.E.D OF.B.AZ.X.M.C.E.D