阅读下列材料，从每小题所给的A、B、C、D四个选项中选出一个最佳选项。
One little miracle (奇迹) has been happening to me recently， and it gives me a special joy.
A few months ago， I was telling my daughter， Sally， some stories about my mother. My daughter was so young when my mother died that she doesn't remember her well. I told her all I could remember， like how wonderful my mother was and how much she meant to me.
One day， Sally was sad because her grandmother was in heaven (天堂) and she couldn't
see her. I explained that though her grandmother was dead， now she was still watching over us and could send us something to let us know she was there. She could be anywhere， even riding invisibly (看不见地) on the back of a butterfly (蝴蝶). Just after I said this， a butterfly flew down right by us， and we laughed happily.
Now many people would say it was just luck that the butterfly flew down at that time. A funny thing， however， has happened since then. Every time I go out in any type of weather I see butterflies. Very often they fly right by my face to get my attention. I always say hi to Mom，send her my love， and thank God for little miracles.
Everyone is always looking for some big miracles to come out and save them when they are in trouble， but they don't notice the little miracles that happen every day right in front of their eyes. I know what they really are， however. For me little miracles are the best kind. So many little miracles happen around me all the time that I know they are not just luck.
根据短文内容，选择最佳选项。
