When looking for the perfect word to suit a certain mood, a thesaurus is often more helpful than a dictionary because it . provides synonyms
provides antonyms
sorts words into categories
provides the pronunciation of the key word

Which of the following is an example of a concurrent power? a. when a group of states work together to regulate interstate commerceb. when a federal law enforcement agency state policec. when a state creates a treaty with a foreign governmentd. when a local government collects taxes on imports