Answer:
I would assume it's succession.
Explanation:
Considering that "succession" means various things a long the lines of a cycle and the definition we're looking for relates to sequential change, I would say that succession is the correct answer, though I apologize if it isn't.
The best answer here is choice B. We can determine this because of the tense used throughout the passage itself. Bearing this in mind, choice B matches the tense perfectly.
Choice A does not work at all because the verb "am" makes no sense in the context of the sentence. The same is true for choice C. The passage is not in present tense, so it cannot be this choice. Choice D could make sense, except that this is in the future tense versus the past tense.
Becase they want slaves to do all the work in order for them to get it done quiker
He's concerned his daughter is practicing witchcraft