Ashley wrote this paragraph:

Gabe is a hardworking art student. He painted his family history on the fence in front of his home. First, he painted his great-grandfather, who had invented a new kind of long-lasting glue. Then, Gabe added his grandfather, dad, mother, and sisters to the mural. The purple and pink flowers that his mother liked are in the background.

Which would be the best concluding sentence?

A. However, Gabe also earns money loading groceries at the supermarket.
B. Finally, Gabe painted the tree that his dad had planted when they moved into the house.
C. In addition, Gabe does well in school.
D. On the other hand, Gabe forgot to include a painting of his favorite dog.