Which element of medieval literature does the disappearance of the sword into the lake represent

The Supernatural Element

The portion of the story you are referring to is the part where King Arthur throws his sword, Excalibur, into a lake where the Lady of the Lake inhabits.  After he throws Excalibur into the middle of the lake and before it lands into the water the Lady of the Lake catches it and takes it into the lake with her.   The Lady of the Lake can be considered a supernatural being, thus contributing to the supernatural element, an element which is common in medieval literature.

im not to sure

- "despite the fact that portia lives in belmont and has many suitors, bassanio believes that he can win her heart. bassanio plans on overcoming his financial obstacles by borrowing money from antonio to travel to belmont. he then plans on marrying portia and becoming wealthy enough to pay off his debts."