Answer:
It creates a humorous tone by comparing Quince’s speech to something disorganized and hard to follow.
Step-by-step explanation:
"A Midsummer Night's Dream" is a comedy. Theseus's comment that "His speech was like a tangled chain -" sets up this comedic play. It also helps the audience to know that they aren't the only ones confused by the prologue. The prologue was supposed to be silly and confusing to help set the humorous tone of the play.