Answer:
A. stillnes
Step-by-step explanation:
The Merriam Webster dictionary defines repose as “a state of resting after exertion or strain.” In that order of ideas in this statement by Emerson the proper meaning according to the context is A. stillness meaning that power comes to an end when lack of activity takes place. Option B. relaxation is not appropriate, it is not a synonym of repose and does not fit into the context. Option C. Meeknes is not appropriate because it would change the intention of Emerson´s “Power ceases in the instant of meekness (obedience).” Option D. Conformity also changes the intention, conformity as correspondence in form or in accordance with something.