Answer:
A. Evil can never truly hide itself.
Step-by-step explanation:
"Evil can never truly hide itself" is the theme covered in this excerpt. This is because it shows that even if Hyde hid and did evil without anyone being able to solve it and even if that evil was in relation to himself, it would not be hidden and it would not be possible that this truth would never be discovered, because all the evil is perceptible at one time or another.