Katie is asked to draw a quadrilateral with the following specifications. any two adjacent angles are supplementary
two opposite angles are complementary
the measures of all the sides are equal

Which of the following statements about this quadrilateral is true?
A. More than one quadrilateral exists with the given conditions, and all instances must be rhombuses.

B. Exactly one quadrilateral exists with the given conditions, and it must be a rhombus.

C. No quadrilateral exists with the given conditions.

D. More than one quadrilateral exists with the given conditions, and all instances must be squares.