CÂU HỎI 8 (SINGLECHOICE)
Which statement is true about the following graphs?
T₂
T₁
T₁ is connected and has no simple circuits, so it is a tree.
T₂ has a simple circuit, so it is not a tree.
T2 is not connected, so it is not a tree.
T₁ has a simple circuit, so it is not a tree.
