Question stem: Flaw in the reasoning
Argument:
Proper plan: Goal -----> the best way to accomplish.
The US doesn't do this.
No Cold war ---> no original purpose.
New purpose ---> unchanged way to accomplish despite alternative ways.
Conclusion: the space station shouldn't be built!
(A) attacks the proponents of a claim rather than arguing against the claim itself. (Appeal to human nature not to the argument, So, OUT.
(B) presupposes what it sets out to prove ---> Circular reasoning, so OUT.
(C) faults planners for not foreseeing a certain event, when in fact that event was not foreseeable ---> Proof/no proof reasoning, So, OUT.
(D) contains statements that lead to a self-contradiction--- a misleading one. But when "another way", this loses its meaning. So OUT.
(E) concludes that a shortcoming is fatal, having produced evidence only of the existence of that shortcoming---> This says argument shows nothing about " alternative way", So, this is the best. The technique here is to hide the right answer in a master way.