How can Maria's ability to remember her grandfather's funeral in detail but not remember her last conversation with him be explained in terms of the limbic system?
1) Maria was emotionally affected by the news of the death but was not emotionally affected by normal conversation
2) Maria did not know that the last conversation would be important so she did not commit the event to memory
3) Maria is intentionally avoiding remembering the last conversation in order to avoid the trauma of losing her grandfather
4) Maria was overwhelmed by the loss of her grandfather because of the number of previous memories with him