Which of the following statements is true? A.
If all four sides of a rhombus are the same length, then it is a square.

B.
If all four sides of a rectangle are the same length, then it is a square.

C.
If all four angles of a rectangle have the same measure, then it is a square.

D.
If all four angles of a parallelogram have the same measure, then it is a square.