During the last ten years, technological tools for educational purpose

During the last ten years, technological tools for educational purposes have seen considerable development, with many universities now offering an equal number of online courses as well as traditional classroom courses. However, access to online courses is usually limited to students living in urban areas who have access to high-speed internet facilities. Consequently, students living outside urban areas are unlikely to be able to access such courses. Nevertheless, universities are likely to continue to increase the number of online courses they offer, because ___________________

A. the number of students living in rural areas is likely to double in the next five years.

B. the number of students enrolling for regular classroom courses has been decreasing steadily.

C. the education ministry is planning to launch a promotional campaign for online courses.

D. Demand for online courses is on the increase in urban areas.

E. Most of the available online courses offer visual interaction with teachers through video-conferencing, a feature appreciated by many students.