This odd one out is from Cat 2021 slot 2 , could not solve it , can someone help?

Question

1. It has taken on a warm, fuzzy glow in the advertising world, where its potential is being widely discussed, and it is being claimed as the undeniable wave of the future.
2. There is little enthusiasm for this in the scientific arena; for them marketing is not a science, and only a handful of studies have been published in scientific journals.
3. The new, growing field of neuromarketing attempts to reveal the inner workings of consumer behaviour and is an extension of the study of how choices and decisions are made.
4. Some see neuromarketing as an attempt to make the "art" of advertising into a science, being used by marketing experts to back up their proposals with some form of real data.
5. The marketing gurus have already started drawing on psychology in developing tests and theories, and advertising people have borrowed the idea of the focus group from social scientists.

Shruti T · Accepted Answer

The paragraph clearly revolves around the emerging field of neuromarketing. Sentence 3 introduces the term and defines it, which makes it the natural starting point. Sentences 1, 2, and 4 then discuss how different people are reacting to it. Sentence 1 talks about the hype in the advertising world, 4 talks about how some see it as a way to add scientific weight to advertising, and 2 shares how the scientific community is still not fully convinced.
Sentence 5 stands out because it talks about marketing using psychology and focus groups, which is a more traditional and well-established approach. It doesn&rsquo;t mention neuromarketing at all. That makes it unrelated to the core theme of the paragraph, which is about how this new science is influencing perceptions and decision-making. So the odd one out is sentence 5.

Jayant M · Answer

This question is easier to solve once you identify the central topic.

Sentence 3 introduces neuromarketing and defines what it does
Sentence 1 shows how the advertising industry is reacting to it
Sentence 4 adds that marketers are using neuromarketing to support their strategies
Sentence 2 shows that scientists are still sceptical of it

Sentence 5 does not connect with this idea at all. It talks about psychology and traditional focus groups, which is a separate area from neuromarketing. It shifts the topic away from emerging science into older marketing tools. That makes it unrelated to the flow of the other sentences. So sentence 5 is the odd one out.