The conflict between Agamemnon and Achilles occurs over a woman named Briseis. Both Agamemnon and Achilles are awarded a woman as a trophy of war, but when Agamemnon is forced to release his captive, Chryseis, he decides that he is entitled to Achilles's captive, Briseis.
Stage directions are small lines put into the script (often in italics) that give the reader an idea of potential movement, what's going on in the scene, what other characters may be experiencing or the expression one may see on their faces. That would mean C is the best possible answer here.
The right answer for the question that is being asked and shown above is that: "b. Assumed by the individual who is the highest ranking person on the scene regardless of experience or training level." Command is a<span>ssumed by the individual who is the highest ranking person on the scene regardless of experience or training level.</span>
