Read the article and select the best answer. Article: My son wanted to give a party for my birthday. We discussed the invitations and the cost of the party. However, we had very different ideas about whom and how many people to invite. He thought that the people we knew had badly disappointed me by not keeping in touch with me since the death of my wife. But my idea of a relationship among people was to be friendly to everyone. He said, "Come on, Dad, where have all these so-called friendly, good people been since Mum passed away? They visited us in the past because Mum made good food." I replied, "I am sorry to hear that. Is this the reason why you do not want to invite those people? It's no wonder that you are unhappy. Can you live alone? Are you teaching your children to do the same in the future?" I asked myself where I had gone in his upbringing. My wife had often blamed me for not paying enough attention to communication with other people when I was raising our son. I realized at this moment that she was quite right. Hours later, my son phoned me to say that he accepted his wife's advice and agreed to have a party with some of my friends. In the end, we had a great time. And he didn't "hate" those friends any more. "Happy Birthday, Dad! Sorry that I have kept you away from your friends. I love you." On hearing what he said, I was full of happiness and excitement. I was proud that he could change his mind. Question: About the party, the author and his son had very different views on _ . Options: A: how much they were going to spend B: how many people were willing to come C: whom and how many people to invite D: which type of party they were going to hold
C