19. The author describes Thomas Moore as having been "on the right
track" (line18 -19) to indicate that
(A) the road to the market passed close to Moore's farm
(B) Moore was an honest merchant
(C) Moore was a prosperous farmer
(D) Moore's design was fairly successful
20. According to the passage, Moore's icebox allowed him to
(A) charge more for his butter
(B) travel to market at night
(C) manufacture butter more quickly
(D) produce ice all year round
21. The "produce" mentioned in line 25 could include
(A) iceboxes
(B) butter
(C) ice
(D) markets