One of the main reasons for a growing disillusionment with science amongst the general public is the perception that scientists are always arguing with one another and constantly changing their minds. ------ People want scientists to agree, to present a united front, and to tell them what is true and what is not.

(A) The scientific consensus appears to have done another U-turn over the last couple of decades.

(B) It is no use explaining that this is how science progresses, through battles between competing theses until the accumulation of evidence ensures that one triumphs and becomes an accepted paradigm.

(C) People want scientists to present a united front because it makes life that much easier and gives them that much less to worry about.