How can a gymnast incur a deduction for dance elements during execution?

The correct answer focuses on the importance of amplitude in dance elements during a gymnastics routine. Amplitude refers to the height and overall expression of the movement. In gymnastics, especially at higher levels like Level 10, demonstrating sufficient amplitude in dance elements is crucial, as it showcases the gymnast's ability to control their body and perform with grace and fluidity. If a gymnast does not show enough amplitude, it can detract from the overall quality of the routine and result in a deduction.

Multiple choice options that involve quick execution, improper attire, or failing to smile relate to different aspects of performance evaluation. Quick execution can affect the flow and presentation but is not a direct judgment of the dance element itself. Attire may be subject to regulations but is typically not a factor for deductions specific to dance elements. Additionally, while a smile can enhance overall performance, it is not a criterion that directly impacts the evaluation of dance element execution.