States have different conditions (some are very agriculture-based, so farming laws will affect them a lot, while others are export-based, so tariffs impact them), so certain laws may not be good for them, but would benefit the country as a whole. If congress has all power, then more populated states can overpower tinier ones. States having their own power means that they can react to their different conditions
The correct option is A.
A dual federalism refers to the system of government whereby the political power is divided between the federal and the state government in clearly defined terms.The state government typically exercise those powers given to it without interference from the federal government. Under this arrangement, the federal and the state government usually have disagreements.<span />
the right answers is A,B,C,F