Answer:
b Abitur
c Zivildienst
d Studium
Step-by-step explanation:
He talks about how he just graduated high school with getting his "Abitur".
Now he's doing his civilian service "Zivildienst" in the hospital. Then he speaks about that he likes this Zivildienst, because he likes to help people. He wants to become a doctor and will start college "Studium" in 2 months.
I'm born and raised in Germany :)