The following questions are based on the diagram given below showing four persons stationed at the four corners of a square piece of plot as shown.
From the original position, B and D move one and a half length of sides clockwise and anticlockwise respectively. Which one of the following statements is true?
(A) B and D are both at the midpoint between A and C
(B) D is at the midpoint between A and C, and B at the corner originally occupies by C.
(C) B is at the midpoint between A and C, and D at the corner originally occupied by A.
(D) B and D are both at the midpoint between A and D.
