I got D,
Let me explain how, I can understand answer "A" but they learn that after the use of money and errors they go through the process makes them understand the use of money more. So let's eliminate A. Now let's move to B, in college you're more focused on school than money. At the time you don't really learn about money -- at all. There are classes you can learn about the uses of money but in college wouldn't be necessary. Now, let's eliminate B. Now as we move onto C, this is an easy one. We don't watch our siblings spend and we can't just understand the use of money randomly from watching your siblings spend it. Therefore, we can remove C.
Therefore, we get D as our final answer.