Education

I figured it out last night.  Looks like I did right.  Thanks for your response.  Now I have another question:  I am the legal guardian of my 20 year old nephew who is a full-time student at a trade school, who lives with me, and I provide much more than 50% of his support.  I have no adopted him, I am merely the legal guardian.  His mother passed away.  I am filing a paper copy, and in the "Dependents" section on the first page of the 1040, should I check off the box that says "Child tax credit" or "Credit for other dependents"?