Read the following context and choose the best option to answer the question.
Context: When I woke up this morning , I realized that this was yet another anniversary of 9/11 . It is my custom , in the morning to spend some time in reflection . It was a beautiful day in NYC that day . The sky was just amazing and the sunlight was just beautiful .
Question: What is the narrator commemorating ?
Options: 
A. None of the above choices .
B. They are commemorating a great moment in history .
C. They are commemorating a terror attack .
D. They are commemorating a fun time in history .


C