Final answer:
The combination of 'Esophago, gastro, duoden' with '-oscopy' refers to an endoscopy examining the esophagus, stomach, and duodenum.
Step-by-step explanation:
Combining the terms Esophago, gastro, and duoden with the suffix -oscopy refers to an examination of the esophagus, stomach, and duodenum. Therefore, the correct answer would be an examination of the esophagus, stomach, and duodenum. The procedure described is known as an endoscopy, during which a device known as an endoscope is used. This instrument allows a doctor to look inside the body by transmitting light and images back to the doctor for diagnosis or treatment guidance. Endoscopes are often equipped with tools that enable not only visual examination but also biopsy collection and minor surgical tasks.