Five sentences related to a topic are given below. Four of them can be put together to form a meaningful and coherent short paragraph. Identify the ODD ONE out. Choose its number as your answer and key it in.

1) Translators are like bumblebees.
2) Though long since scientifically disproved, this factoid is still routinely trotted out.
3) Similar pronouncements about the impossibility of translation have dogged practitioners since Leonardo Bruni’s De interpretatione recta, published in 1424.
4) Bees, unaware of these deliberations, have continued to flit from flower to flower, and translators continue to translate.
5) In 1934, the French entomologist August Magnan pronounced the flight of the bumblebee to be aerodynamically impossible.

On reading the sentences, we can infer that the author draws an analogy between translators and bumblebees in the paragraph.

1 should be the opening sentence since it introduces the fact that the paragraph is going to be about the similarities of translators and bumblebees. After sentence 1, the author should have explained how they are analogous.

5 states that the French entomologist August Magnan pronounced the flight of bumblebees to be aerodynamically impossible. Sentence 3 talks about similar statements made about translations. Sentence 4 should be the last sentence since it concludes by saying that both translators and bees have continued their work unaware of these deliberations. Sentences 1534 can be put together into a coherent paragraph. 

Sentence 2 does not add any valuable information to the topic of discussion. The author does not use the fact that the factoid (impossibility of the flight of the bumblebee) has been disproved to support his argument. Sentence 2 should be the one out of context and hence, 2 is the correct answer.