Questões de Concurso

A student writes:
"Online courses offer greater scheduling flexibility. This flexibility can benefit students who work. They also require considerable autonomy. This can become difficult when learners have limited experience managing their own study routines."
Although the paragraph is understandable, the teacher wants to improve its referential precision and thematic progression.
Which revision achieves this purpose most effectively?

(a)

Online courses offer greater scheduling flexibility, and this is flexible for working students. They require autonomy, and this is difficult because learners manage study routines.

(b)

Online courses offer greater scheduling flexibility. Working students benefit from flexibility. Autonomy is also required by them, although study routines have limited experience.

(c)

Online courses offer greater scheduling flexibility; therefore, they require considerable autonomy. Consequently, working students may benefit from managing their own study routines.

(d)

Online courses offer greater scheduling flexibility, which can benefit working students. However, these courses also require considerable learner autonomy, a demand that may challenge students with limited experience managing their own study routines.