a women accompanies her 71 year old father who recently had a bad fall. he is not injured, but his daughter says he seems increasingly unsteady whenever they go for a walk. she also says that his memory has also becime less reliable in the last few years. that same morning, he became confused and did not recognize his favorite coffee mug. you are concerned that the patient may be showing signs of alzheimers disease. which of the following signs best characterizes what the patent is experiencing? A. aphonia, B. Aphasia, C. Apraxia, D. agnosia