About his process riis wrote, "our party carried terror wherever it went. the spectacle of strange men invading a house in the midnight hours armed with [flash] pistols which they shot off recklessly was hardly reassuring." he spelled out the disadvantages of flash photography in his business, but how did this process create an advantage for him as a social reformer? a. startling his subjects made them look more miserable. b. the bright light made all the tenement dirt and grime more apparent. c. the flash pistols made the sleepiest lodgers open their eyes. d. surprising his subjects made it clear that the photos were not posed.