【单选题】听力原文: Make no mistake, learning any language to proficiency takes thousands of hours, but learning enough to be able to communicate reasonably well is not so difficult. If you can read this in English...
A.
One can assess how appropriate the courses you're considering buying.
B.
One can focus on studying the oral and written language.
C.
One can concentrate one's efforts on the spoken language.
D.
One can read information on the Internet or in books, magazines or newspapers.