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. A particularly interesting example of inference occurs in many single panel comics.
2. It’s the creator’s participation and imagination that makes the single-panel comic so engaging and so rewarding.
3. Often, the humor requires you to imagine what happened in the instant immediately before or immediately after the panel you’re being shown.
4. To get the joke, you actually have to figure out what some of these missing panels must be.
5. It is as though the cartoonist devised a series of panels to tell the story and has chosen to show you only one - and typically not even the funniest.

After reading all the sentences it is clear that the paragraph talks about how to understand the humor behind the single panel comics.

The sentence 1 sets the platform for the author to explain how to infer humour in a single panel comic.

Consider the sentences 3,4,5. Those sentences are aimed at the reader. 

"3. Often, the humor requires you to imagine what happened in the instant immediately before or immediately after the panel you’re being shown."
"4.To get the joke, you actually have to figure out what some of these missing panels must be."
"5. It is as though the cartoonist devised a series of panels to tell the story and has chosen to show you only one - and typically not even the funniest."

Sentence 2 on the other hand is a stand alone sentence that does not fit in with the rest of the paragraph. Hence, it is the odd sentence.