Question 678 Deck General

The correct answer is B) 20 feet (6 meters). The standard container used to measure equivalent units is the 20-foot (6-meter) shipping container. This is the most commonly used size for international maritime freight transport and is the standard reference size for container capacity measurements. The other options are incorrect because 10 feet (3 meters) is too small, 35 feet (11 meters) and 40 feet (12 meters) are larger, non-standard container sizes not typically used as the reference unit.