What consists of several sections or elements within a squadron?

A flight consists of several sections or elements within a squadron, making it the correct choice. In the structure of the Air Force, a squadron is a unit that typically contains multiple flights, which are organized groups that perform specific functions or missions. Each flight can be further divided into sections, focusing on specialized tasks or areas of expertise. This hierarchical organization is crucial for maintaining clarity in command structure and operational efficiency within the squadron.

In contrast, the other terms refer to different organizational levels or units and do not correctly represent the subdivision of a squadron. A shift often refers to a period of time during which personnel are assigned to work, rather than a structural element within a squadron. A team can refer to a smaller group within a flight or even within a section but does not encompass the broader organizational concept of a flight. A division typically refers to a larger unit than a squadron, often encompassing multiple squadrons, thus making it unrelated to the specific context of the question.