What distinguishes business class in air travel?

Business class in air travel is distinguished primarily by offering accommodations that are more comfortable than those found in coach class, yet not quite at the level of first class. This class of service is designed for travelers who need a balance between comfort and cost, providing features such as wider seats, more legroom, enhanced meal options, and access to priority boarding.

While business class does share some amenities with first class, such as better in-flight services and possibly lie-flat seats on certain airlines, it does not replicate the overall luxury experience of first class. This differentiation in comfort level is a key reason why option B accurately captures the essence of business class: it truly sits between coach and first class in terms of both comfort and price.

Regarding the other options, business class is not restricted only to leisure travelers, as it is frequently used by business professionals who prioritize comfort during travel. Additionally, although airport lounges may be a benefit that comes with a business class ticket, the requirement of an additional fee for lounge access makes that choice less representative of what defines business class overall. Thus, the focus on accommodations and the specific offering of comfort level as compared to other classes truly sets business class apart, confirming option B as correct.