It occurred to us after we got inside the building that we were n't taking any pictures , so we started as soon as we got outside . We walked around the front and took a picture of the mission . There was a line of people walking inside .
According to the above context, choose the best option to answer the following question.
Question: What does the narrator need to do ?
Options:
A. They need to memorialize the trip .
B. None of the above choices .
C. They need to go for a walk .
D. They need to complete the mission .


A