Below is shown a rectangular television screen and half of a square-shaped lace whose diagonal is on the top edge of the television.
When the corners of this lace that are on the screen are shifted 2 units downward in the vertical direction, it is observed that the area covered by the lace on the screen increases by 16 square units compared to the initial situation.
Accordingly, what is the area of the lace in square units?
A) 48\\
B) 49\\
C) 50\\
D) 56\\
E) 64