What is the purpose of a screen reader?

A. It reads text displayed on the screen to blind or visually impaired people.
B. It reads the parameters of the attached monitors and creates an appropriate X11 configuration.
C. It displays lines and markers to help people use speed reading techniques.
D. It manages and displays files that contain e-books.


螢幕閱讀器(screen reader)可以協助視力非正常的人也能用其他方式閱讀螢幕所顯示的內容。所以答案是選項A。