Your answer would be the last choice ;) as it isn't a complete sentence. Hope this helps!
I'm pretty sure the answer is A. Bird
They didn't have the knowledge which the English had which made them easier to take over since they didn't have to knowledge to take back what the English people had with made Johnson undertake his work
Answer:
B
Explanation:
'Unfolding a line of thought, step-by-step, to try to convince the
reader of something'
this one makes the most sense and is what i believe the answer your looking for, taking it step-by-step and unfolding a line of thought is how you develop an argument so i am convinced this is the right answer.