Answer:
The correct answer is D. It builds suspense about the war in the play.
Step-by-step explanation:
The excerpt is describing a scene of war; And monarchs to behold the swelling scene! Means that the kings and queens are watching and ready to see the show (Henry in war). The line; Leash'd in like hounds, should famine, sword and fire, refers to what the monarchs and everyone else are seeing at the moment: hungry dogs leashed (not literally). Having explained this, this “scene description” makes the scene more dramatically and with so much suspense.