From this given statement, select the definition, property, postulate, or theorem that justifies the proven statement. Given: Rhombus RSTU Prove: Rt SU

A. The diagonals of a rhombus bisect each other.
B. Definition of a rhombus
C. Definition of perpendicular lines
D. The medians of a rhombus are perpendicular to each other.
E. The diagonals of a rhombus are perpendicular to each other.