3. According to the text, how did NASA’s understanding of software engineering develop over time?
A. NASA came to view software as merely a backup plan if something went wrong rather than a necessary part of space travel.
B. NASA grew to understand the importance of software engineering in the Apollo missions over time.
C. NASA understood the necessary role that software played in the Apollo missions from the beginning.
D. NASA learned over time that astronauts were prone to error while software never malfunctioned.