Answer:
(C)69 units
Explanation:
The diagonals of a parallelogram bisect each other.
Therefore, point E divides diagonal BD into DE and EB such that:
DE = EB
2x+9=3x-21
3x-2x=9+21
x=30
Therefore:
DE=2(30)+9=69 Units
EB=3x-21=3(30)-21=69
Therefore, the length of segment EB in parallelogram ABCD is 69 Units
The correct option is C.