Two objects (A and B) of the same temperature are in contact with each other. Which statement is true?

Question

Question 2 options:

Heat transfers from object A to object B, because molecules from A collide with those from B.

Heat transfers from object B to object A, because molecules from B collide with those from A.

Although the molecules collide, no heat transfers because there is no temperature difference between the objects.

No heat transfers, because there are no collisions between the molecules of the objects.