Which of the following statements is true? a. repetition can the audience remember what you have said. b. restating information in your speeches will bore your audience. c. using repetition and restating ideas is considered inappropriate in most speeches. d. repetition is a cliche that ought to be avoided during speeches.

It might be said that repeating information during an speech for example, helps the audience to understand the topic better. It is used as an strategy to enhance a presentation and it is also important as a tool to remind people of relevant information being said. So the correct option should be A "Repetition can help the audience remember what you have said". 

Yes, just because one had a disability doesn't change the meaning of the word. they would most likely have an (whatever language) sign language to sign what's going on. it would be the same even if he was blind.