Prices effectively act as signals to producers and consumers in all of the following instances except: a. regulating government interaction b. people make quick decisions c. providing incentives to consumers and producers d. regulating the flow of goods in the economy

Hey!me its for an important test! ! which issue during the progressive era would most likely have united mary harris "mother” jones and lewis hine? a) ending child labor b) regulating monopolies c) using photography to expose poor working conditions d) exposing the lack of jobs available for untrained laborers