A. The structure and roll of the legislative branch.
Because the US needed to honor its vow to defend Russia
Answer:
Louis Sullivan
The international style
Explanation:
Louis Sullivan designed some of the most admired American skyscrapers during the 1950s and 1960s. The international style architecture emphasized clean lines, geometric (usually rectilinear) form, and an avoidance of superficial decoration. The "bones" of a building were supposed to show and to be the only ornament necessary. a clasic example of this pure style is Lever House.
Answer:
Due to mobilization of the Russian side, as it was perceived as a threat by Germany
