Which of the Following Aspects of Memory Loss Involving Information

Which of the following aspects of memory loss involving information processing deficits has received the most research support?

A) Memory declines due to changes in the ability to pay attention to and organize tasks involving memory skills.
B) People in late adulthood have a different ability to inhibit irrelevant information and thoughts,which interfere with learning and recalling memorized information.
C) The speed at which the elderly process information becomes slower,and perhaps contributes to slow reaction times in retrieving memories.
D) The elderly suffer neuron loss,which inhibits their ability to hold and retrieve information.