WHICH FORM OTHER THANORAL SPEECH WOULD BE MOST COMMONLY USED AMONG...

28. - 25 DE THI HOC KI 1 MON TIENG ANH LOP 12 CO DAP AN
25 DE THI HOC KI 1 MON TIENG ANH LOP 12 CO DAP AN

28. Which form other thanoral speech would be most commonly used among blind people ?

A. picture signs

B. Braille

C. body language

D. signal flags