Choose all the common themes in modern architecture.
[Mark all correct answers]

a. Focused on ornamentation and the overall look of the building and NOT on the function of the building
b. The notion that "form follows function," a dictum originally expressed by Frank Lloyd Wright's early mentor Louis Sullivan, meaning that the result of design should derive directly from its purpose
c. Simplicity and clarity of forms and elimination of "unnecessary detail"
d. Used expensive, rare materials to create ornate and decorative entrances
e. Small windows and smaller, simplified space
f. "Truth to materials," meaning that the true nature or natural appearance of a material ought to be seen rather than concealed or altered to represent something else
g. A visual emphasis on horizontal and vertical lines