Jurgis's friend tells him that "they were regular alchemists at durham's. why does he make this comparison between a canned goods company and medieval scientists who sought to turn common metals into gold?

Which choice is a major detail from paragraph two? a) the great wall is a large network of several walls and towers. b) the great wall looks like a long wall snaking its way across china. c) the great wall was constructed over hundreds of years beginning in 221 b.c. d) the great wall construction encouraged several independent kingdoms to unite.