How many breakaways does an M149A2 water trailer have?

The M149A2 water trailer is designed with a single breakaway feature. This means that it has one breakaway section that is integral to its operational design, allowing for a certain level of maneuverability while ensuring that the trailer can detach if necessary. This design is essential for the transport and distribution of water in military operations, providing flexibility and safety in various terrains and conditions.

The other choices suggest multiple breakaways, which do not align with the specifications of the M149A2 trailer, as it is not intended to have more than one configured breakaway point. Understanding this feature is vital for operational readiness and safe handling of the equipment in the field.