okgmat
I don’t quite agree with the solution. choice B, states the same thing stated in the last paragraph (even using the same words!)
i understand that the following sentence should be within that context
but logically, why would anyone repeat exactly what's been said?
Hi. Sorry for a late reply.
You are correct that B) is repetitive and would not be an elegant next sentence. Agreed
What the question asks is - the most logical choice, not a perfectly written continuation. B stays with the final paragraph’s research agenda: testing other age groups and less familiar beverages. The other choices introduce an unsupported marketing recommendation, overstate the role of neural imaging, shift to beverage formulation, or contradict the passage. Thus, despite its awkward repetition, B is the only choice that continues the established line of thought.