Is the following statement true for a rhombus?

Two of its angles are at right angles.

Is the following statement true for a rhombus?

Its diagonals bisect each other at right angles.

Is the following statement true for a rhombus?

Its diagonals are equal and perpendicular.

A rhombus has all its sides of equal lengths.

Is the following statement true for a rhombus?

It is a parallelogram.

Is the following statement true for a rhombus?

It is a quadrilateral.

A rhombus can be a square.

Is the following statements true for a rhombus?

It is a square.

Complete the statement by filling in the blank, so as to make the statement true:

A rhombus is a parallelogram in which _____.