Any student who is not required to hand in written homework based on the reading assignments in a course will not complete
all of the reading assignments. Even highly motivated students will neglect their reading assignments if they are not required to hand in written homework. Therefore,
if the students in a course are given several reading assignments and no written assignments,
no student in that course will receive a high grade for the course.
The conclusion of the argument follows logically if which one of the following is assumed?
(A)
No student who completes anything less than all of the reading assignments for a course will earn a high grade for that course. - CORRECT. It gives the absoluteness that the conclusion makes.
(B)
Any student who completes all of the reading and written assignments for a course
will earn a high grade in that course. - WRONG. Not 'any student'. A--->B doesn't mean A'---->B' where in A stands for "students in a course are given several reading assignments and no written assignments" and B stands for "no student will receive a high grade for the course, and A' stands for "any student who completes all of the reading and written assignments for a course" and B' stands for "earns a high grade".
(C)
All highly motivated students who complete all of the reading assignments for a course
will receive high grades for that course. - WRONG. What about writing ones? Half truth.
(D) If highly motivated students are required to hand in written homework on their reading assignments, then they
will complete all of their reading assignments. - WRONG. Not necessarily - not 'all'.
(E)
Some highly motivated students will earn high grades in a course if they are required to hand in written homework on their reading assignments. - WRONG. Just like D this option is wrong. Actually it is a subset of D.
There are trap answers that use similar words as used in passage.
Here B is surely a trap answer for which i fell.
Answer A.