Answer:
I believe it is the atomic bomb, but I may be wrong. sry
I would say the answer is B. A is wrong because slavery was just being called for abolition. D is wrong because no women had the right to vote till 1890s.
The right answer for the question that is being asked and shown above is that: "<span>D. I and IV."</span>
<span>I. A letter written by a participant in the revolution
II. An article written by an American considering causes for the revolution
III. A historical text written about Middle Eastern revolutions over time
IV. A photograph of political protests during the revolution
A. I, III, and IV
B. III only
C. II and IV
D. I and IV</span>
One party leads to a lack of disagreement in ideas which could lead to irresponsibility in government