Lucy is the first to discover Narnia because they were playing hide and seek so she went in the wardrobe.She meets Mr. Tumnus because when she entered Narnia there was a lamp post that's where they met. I'm not sure about the last one but i think it would be D because it looks like telling from the story that no one wanted to be around him.
You should start with listing the different ways you want to test them. Then each paragraph should talk about each different method and the results. Hope this helps.