gmatFalcon
Although many graduate students rely on the convenience of taking an incomplete at the end of an overwhelming semester in order to complete their work in a class,
doing so too often can be imprudent for a student whose grade point average is already affected by a small number of grades.
A is clearly the best answer of the lot.
A. doing so too often can be imprudent for a student whoseI eliminated other options in the following manner -
Option B - B. doing so too often can imprudently be for a student such that theirThe 'their' at the end should logically be pointing to the noun 'student', but student here is 'singular'. Hence we have clear pronoun error.
Also there is a meaning change in this option that is created by the incorrect placement of imprudently. Hence Incorrect
Option C - C. for a student to do so too often can be imprudent whose'whose' at the end of the sentence should logically refer to 'a student', but grammatically it seems to be referring to 'imprudent' that distorts the original meaning. Hence Incorrect
Option D - D. to do so can be imprudent too often for a student because his or herThis option clearly changes the meaning. In this, adding 'because his or her' after 'student' implies that the issue mentioned in the prompt is faced by all students who are taking an incomplete whereas as per the original meaning suggests that the issue is likely to be faced by particulary "those students whose grade point average is already affected by a small number of grades." Hence Incorrect
Option E - E. it can be done imprudently too often for a student whoseIt has the same case of change in meaning as in D. From the original prompt, it seems that the student is making the decisions but here "it can be done imprudently too often for a student" implies that somebody else is intervening and deciding for the student. Hence incorrect