Final answer:
Rear entry in aircraft design mainly offers the advantages of easier access for passengers and increased cargo space, aiding in comfort and operational efficiency, which aligns with the business objectives of HighFlyer Airlines. The correct option is C) Easier access and increased cargo space
Step-by-step explanation:
The question relates to the potential advantages of redesigning an airplane's cabin to increase its cabin space. Rear entry to the plane is one of the design considerations that could contribute to this goal. When listing the advantages of rear entry in an aircraft, the correct answer refers to options that directly impact the comfort and efficiency of the airplane's design. The two major advantages often associated with rear entry are options C) Easier access and increased cargo space. Easier access facilitates quicker boarding and deplaning for passengers, while increased cargo space allows for more efficient use of the aircraft's overall space and can lead to operational improvements for the airline.
These advantages align with HighFlyer Airlines' goal of providing passengers with more comfort and the ability to sell more tickets at higher prices as referenced in the problem scenario provided. Increased cabin space through design innovations like rear entry impacts the operating costs and ticket sales, which are crucial factors for HighFlyer Airlines when considering the value of R&D projects and their expected private rate of return.