Argument confuses us between student body and "all" students. Student body is necessarily a fraction of student population. Miriam need not be part of student body to take courses in wide range of disciplines.
(A) The students at this school take mathematics. Miguel is a student at this school, so he takes mathematics.
This is good argument and leaves no space to weaken. No flaw in this answer.(B) The editorial board of this law journal has written on many legal issues. Louise is on the editorial board, so she has written on many legal issues.
This makes the same error. But i still think the answer is incorrectly worded. Shouldn't Loise be just the editor and not on the editorial board to make this answer's reasoning similar to that of question stem?
Still this is the best choice we have got here.(C) The component parts of bulldozers are heavy. This machine is a bulldozer, so it is heavy.
This is flawed, but not in the same way. This takes the fraction first and links it to the whole part.(D) All older automobiles need frequent oil changes. This car is new, so its oil need not be changed as frequently.
This is utter nonsense. There's no talk of fractional and whole parts of the same population.(E) The individual cells of the brain are incapable of thinking. Therefore, the brain as a whole is incapable of thinking.
This one commits same mistake as C. Given no other choice, B is the answer.
I didn't like this question. What is the source?
This is definitely a sub-550 level question!