A、Cancer. B、Heart disease. C、Organ transplant. D、Lung disease. D

W: Hello, nice to meet you, Dr. Griffin. I’m Nancy Wang with China Daily.
M: Nice to meet you, Miss Wang. I’ve been to China twice.
W: Really? When?
M: I visited China first in 1996 and then in 2000. I believe everyone who bas been to China is impressed with the dramatic changes there.
W: Thank you, Dr. Griffin. I heard it is your institute that first cloned an adult mammal—Dolly the sheep in July 1996.
M: That’s right. Ever since it was born, Dolly has been the center of attention because its appearance marked the beginning of a new era.
W: It’s reported that Dolly gave birth to a lamb in April last year. How are Dolly and the little lamb doing?
M: The lamb is called Bonnie. They are both doing Well. This has proved that Dolly, a cloned animal, is able to breed normally and produce healthy offspring.
W: It is indeed exciting. Will Dolly give birth again?
M: She has already. On March 24 this year, Dolly gave birth to three healthy lambs, two males and one female.
W: les incredible! Dolly must have made world headlines again!
M: This has further demonstrated that cloned animals can lead a normal life.
W: How will human beings benefit from this new progress in science?
M: Dolly and her offspring are part of a research program aimed to produce treatment for a kind of chronic lung disease.
W: I Wish you success, Dr. Griffin!
M: Thank you, Miss Wang.