Final answer:
In appendicitis, abdominal tenderness is elicited by coughing.
Step-by-step explanation:
In appendicitis, abdominal tenderness is elicited by asking the patient to cough. Coughing causes the abdominal muscles to contract, which can increase the pressure in the abdomen and provoke pain if the appendix is inflamed. Laughing, sneezing, and yawning do not typically elicit abdominal tenderness in appendicitis.