I would say (a) is your answer because having money or a lot of friends isn't a good choice in life. I mean, sometimes it's good to hang with a lot of friends but it's better to have a little bit. And it's good to be rich and all, but having a lot of money comes with a lot of responsibility to be honest. But most importantly, you have to make sure that your feelings matter and be happy because being happy is the best feeling in life; a better feeling than having money and a bunch of friends.
Hope this helps