Final answer:
The capacity and location of an auxiliary oxygen system depend on the specific aircraft design and its intended use. These systems store oxygen in a compressed form to support life in environments with low oxygen levels, such as high altitudes or in space. The exact capacity and location would need additional context to determine.
Step-by-step explanation:
The question relates to the auxiliary oxygen system capacity and location within an aircraft. The capacity and location specified in the options A to D vary, but without additional context, we cannot provide a definitive answer about which is correct. However, we can discuss the broader topic of auxiliary oxygen systems, why they are important, and their typical characteristics in aviation.
Auxiliary oxygen systems are critical for maintaining life support in situations where the ambient atmosphere lacks sufficient oxygen. In aviation, these systems are typically installed in strategic locations within the aircraft to ensure both efficiency and safety. The oxygen is stored as a highly compressed gas or as a cryogenic liquid — liquid oxygen (LOX), due to its highly compressible nature. This allows for a significant amount of oxygen to be stored in a small space, which is essential on aircraft where space is at a premium.
In the case of military fighter jets like the F/A-18C Hornet, mentioned in one of the figures, the LOX containers are installed in specific bays designed to hold them securely. Similarly, in the space shuttle, as indicated by the provided figure, liquid oxygen was stored in large tanks with dual compartments to fuel the shuttle's main engines upon launch. In the context of high-altitude activities such as mountain climbing, climbers carry oxygen bottles because the atmospheric oxygen concentration is too low to sustain high levels of exertion.