Answer to Question 1
Ans: A, B, C
Speaking in low tones and making sure he can see your lip movement will assist the client in hearing and understanding better, as will wearing his hearing aid. Keeping his room free of clutter is nice, but will not assist his hearing. Reorienting will not help to improve the client's hearing.
Answer to Question 2
Ans: B
The body quickly adapts to constant stimuli. In addition, the repeated stimulus of a continuing noise, such as city traffic, or a noxious odor eventually goes unnoticed. This phenomenon is termed adaptation.