Which shape is always a rhombus?

my answer is ****
A square because it has 4 sides that are the same length.****

A rectangle because it has 2 pairs of parallel sides.

An equilateral triangle because it has 3 sides that are the same length.

A quadrilateral because it has 4 sides

Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you

See your later post.