Answer:
The correct answer is- inspection
Step-by-step explanation:
In medical field inspection means to examine the patient by looking at the external body surface, movement of body parts, evidence or symptoms for disease like swelling, redness, etc, and posture for any abnormalities.
In physical exam, inspection is the first step. Inspection is very much important because it can be used to detect any abnormalities. Inspection is followed by palpation where doctor check abnormalities by touching the patient. Breathing difficulties can be checked in this step. Therefore the correct answer is inspection.