Something experimental is something that is an operation or procedure carried out under certain conditions in order to discover something unknown or to test or establish a hypothesis. Characters engaging the audience was not so innovative, nor is having creative characters. Nothing special about portraying characters how they are in real life. The answer that fits best the idea of experimental is:
3.The characters are presented in new or unusual ways.
Metaphor; its showing how that rack was moving alot-something like how a teeter totter would look had someone been playing on it. it was comparing the rack to a teeter totter
