I'm taking a test and have to guess the right answer to the question after the article. Article: C "Over the years the unthinkable has become thinkable and today we sense we are close to being able to alter human heredity ." These were the words of David Baltimore of the California Institute of Technology,on December 1st,when he opened a threeday meeting in Washington to discuss the morality and use of human gene editing.Dr Baltimore is an old hand at these sorts of discussions,for he was also a participant in the Asilomar conference,in 1975,which brought scientists together to discuss a safe way of using the thennew technology of recombinant DNA,and whose recommendations influenced a generation of biotechnology researchers. Four decades on,the need for a similar sort of _ has arisen.The International Summit on Human Gene Editing has been held by the national scientific academies of three countries--America,Britain and China.They are particularly concerned about whether gene editing should be used to make heritable changes to the human germ line,something Dr Baltimore described as a deep and troubling question.Like those of Asilomar,the conclusions of this meeting will not be binding.But the hope is that,again like Asilomar,a mixture of common sense and peer pressure will create a world in which scientists are trusted to regulate themselves,rather than having politicians and civil servants do it for them.The meeting is being held against a backdrop of rapid scientific advance.Since 2012 research into a new,easytouse editing tool called CRISPRCas9 has blossomed.This technique involves a piece of RNA (a chemical messenger,which can be used to recognise a target section of DNA) and an enzyme called a nuclease that can snip unwanted genes out and paste new ones in. Public interest was aroused in April,when Chinese scientists announced they had edited genes in nonviable human embryos,and again in November when British researchers said they had successfully treated a oneyearold girl who had leukaemia ,using geneedited Tcells.Tcells are part of the immune system that attack,among other things,tumour... Question: This passage is most probably a _ . Options: A: science fiction B: scientific report C: conference summary D: commercial advertisement
A:
B