正解:B
"In Axis' product naming convention, the suffix '-B' stands for 'Bullet camera,' indicating that the device is a bullet-style camera model."
- Axis Communications Academy, Network Video Fundamentals, 2022
"-B at the end of the model name typically refers to Bullet camera models, e.g., AXIS M2025-LE-B."
- Axis Product Naming Guide
References:
Axis Communications Academy, Network Video Fundamentals, 2022 (p. 14)
Axis Product Naming Conventions