Which statements describe how architects antoni gaudí, i. m. pei, and oscar niemeyer might create harmony and beauty in the exterior and interior of an art museum? choose all answers that are correct.

a. they could create a visual rhythm that guides visitors' eyes by using many different kinds of complex shapes and forms.
b. they could use a similar style of sculptural decoration on all of the exterior and interior walls.
c. they could use pleasing proportions for all the parts of the building.
d. they could use the same kinds of shapes, colors, textures, and forms as in the natural or man-made surroundings. e. they could add a fountain, gateway, or sculpture that has the lines, forms, colors, or images of the art museum.