Which uneven bars dismount involves a double back tuck/pike with a half twist?

The choice of a dismount that includes a double back tuck or pike with a half twist accurately describes the technique and skills involved in that particular dismount. A double back dismount refers specifically to two backflips executed in either a tuck (knees brought into the chest) or pike (body bent at the hips, legs extended) position. The inclusion of a half twist indicates that while executing the dismount, the gymnast will rotate their body to perform a half twist before landing.

In the context of gymnastics, dismounts are pivotal not only for their difficulty but also for their execution and landing. The description given meets the criteria of both the type of somersault (double back) and the additional twist, making it a defining component of this specific dismount. The other options listed do not accurately describe a combination of a double back with a half twist, focusing instead on either different twisting configurations or varying types of flips, thus making the selected option the correct one.