Our first day of school was filled with excitement and a little sentiment . The husband and I dropped the little boy off to school and as you can see he 's very ready . He woke up early , ate breakfast and got dressed all by himself .
What may be the reason for this day being sentimental ?
Pick the best answer from the following options:
A. Because the boy lost his first tooth .
B. Because the boy is moving away .
C. None of the above choices .
D. Because the boy is growing up .


D