Who wrote "the adventure of the blue carbuncle"? a. sir arthur conan doyle b. henry baker c. dr. joseph bell d. dr. john watson

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