People ought to take into account a discipline' s blemished origins when assessing the scientific value of that discipline. Take, for example, chemistry. It must be considered that many of its landmark results were obtained by alchemists -- a group whose superstitions and appeals to magic dominated the early development of chemical theory. The reasoning above is most susceptible to criticism because the author
A: fails to consider how chemistry's current theories and practices differ from those of the alchemists mentioned
B: uses the word "discipline"in two different senses
C: uses an example to contradict the principle under consideration
D: fails to establish that disciplines with unblemished origins are scientifically valuable
Choose A, B, C or D as your solution.
A