Hey Moneymafia100!
Is there some part of this question that is missing? Maybe the options for the multiple choice?
But, pretty much what is happening in this part of the book is, Argo (Odysseus' dog) has seen Odysseus for the first time in a long time, and he is extremely old and weak. When he sees Odysseus he ends up dying, making this one of the saddest parts of the book - all Argo wanted was to see Odysseus once more, and then he would be able to die happy.
Hope I was able to help. And if you do have any multiple choice or bank of options, please let me know so I can further assist you!