Answer:
(A)
Step-by-step explanation:
Given: BLUE is a quadrilateral.
To prove: Quadrilateral BLUE is a parallelogram.
Proof: By the definition of parallelogram, the opposite sides of the parallelogram are equal and parallel.Thus, we have to prove that the opposite sides of quadrilateral BLUE are equal and parallel.
Now, (BL and EU) and (BE and LU) are the opposite sides of the parallelogram BLUE, thus all we need is to prove that BL║EU ..
Therefore, Option A is correct.
