Which one of the following statements best summarises the central point of the passage?

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Question :

Which one of the following statements best summarises the central point of the passage?

Started 10 months ago by Shashank in

A.
Once the stuff of science fiction, nano-robots now feature in cutting-edge scientific research.
B.
Robots will use nano-robots on their feet and wheels to climb walls or move on ceilings.
C.
The field of robotics is likely to be featured more and more in comics like the New X-Men.
D.

Nano-robots made from molecules that react to water have become increasingly useful.

Option A is the correct answer.

Explanatory Answer

The central idea of the passage is that nano-robots, which were once part of science fiction and comics, have now come true, with scientific researchers making such autonomous devices from molecular parts. Option A is the correct choice.

Options B and D state some ideas from the passage, but not the central idea.