What are the dimensions of a straddle trench?

The correct dimensions of a straddle trench are typically characterized by being 4 feet long, 1 foot wide, and 2 ½ feet deep. This configuration allows for adequate space for personnel (when necessary) while providing the necessary depth to safeguard against enemy fire and surveillance. The trench is designed to enable users to effectively employ weapons while remaining partially sheltered.

These dimensions also reflect the balance between mobility and concealment; a width of 1 foot allows for enough room for a standing position or for maneuvering, while the depth sufficiently protects individuals from visibility and fire. The choice of 4 feet in length permits multiple personnel to utilize the trench if required, facilitating tactical operations.

Other options do not align as closely with standard field requirements for straddle trenches, either being too shallow, too narrow, or insufficient in length for effective operational use. This makes option B the most practical and effective choice for a straddle trench.