(C) She does it as a hobby.

(D) She teaches a course on currency exchange.

40. (A) They identify the city where the penny was minted.

(B) They are the initials of a famous coin collector.

(C) They stand for the government agency that mints coins.

(D) They are the initials of the person who created the penny's design.

41. (A) All of her friends collected them.

(B) Pennies were cheap to collect.

(C) Someone gave her a rare penny.

(D) She needed the money.

42. (A) Trade coins with club members.

(B) Show the audience her coins.

(C) Explain how the penny is minted.

(D) Discuss the life of Lincoln.

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