Answer:
The central dramatic element is the cutting of a piece of hair.
Step-by-step explanation:
The central dramatic element IS THE CUTTING OF A PIECE OF HAIR.
The cutting of a piece of hair the boat ride to Hampton Court Palace the card game Belinda's attack on the Baron to retrieve the lock.
Belinda was awakes and gets ready for the day with the help of her maid, in which they set the head of Belinda and as well divide the hair in which some fold the sleeve, whilst others plait the gown which is why Pope also describes Belinda's two locks of hair as "which graceful hung behind".