What Is the Main Reason That It Takes Most Students

What is the main reason that it takes most students longer than four years to complete an undergraduate degree?

A) Students are not academically prepared for university training and must take remedial coursework.
B) Financial concerns require that students also work, which increases the time to complete the degree.
C) Students lack focus and change their majors quite a few times, which adds on to their academic programs.
D) Many students transfer to a different institution that does not accept all of their previous credits.