Help this very important‼️‼️‼️ Which clause of the constitution provided the federal government expand powers generally referred to as reserved power?

a. The commerce clause
b. The necessary and proper clause
c. The three-fifths clause
d. The supremacy clause

Which of these is not a criticism of the concentric zone model? it does not accurately describe cities after the rise of suburban development. it only applies to cities that grew after the development of the automobile. it assumes that inner-city areas will always be repurposed instead of abandoned. it places too much importance on the traditional central business district.