"Jackson threatened to send federal troops to South Carolina to force them to comply with the law."
A - only the national level can declare war
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.