Computers increasingly deal not just with abstract data like credit card details and databases, but also with the real world of physical objects and vulnerable human bodies. A modern car is a computer on wheels; an aeroplane is a computer on wings. The arrival of the “Internet of Things” will see computers baked into everything from road signs and MRI scanners to prosthetics and insulin pumps. There is little evidence that these gadgets will be any more trustworthy than their desktop counterparts. Hackers have already proved that they can take remote control of internet connected cars and pacemakers. Which one of the following statements best reflects the most critical inference that can be made from the passage given above?

Option (a) is correct: Computers are not completely safe ie there is some vulnerability in them, can be deduced from the last two lines or the conclusion within the passage Option (b) is incorrect: the passage is silent on companies seriousness in building software are not taking cyber security. so, this statement is speculative and cannot be deduced. Option (c) is incorrect: Due to the rising vulnerabilities and threats of data breaches in case of hackers taking over, the need for stringent data security laws can be indirectly inferred. However, it is a fallout of the recent trends of communication technologies and their complexities which is the more critical inference of the passage. Option (d) is incorrect: Passage's premise is related to computers and their safety concerns considering their widespread and critical usage. Communication technologies as such are not discussed and cannot be inferred. Hence Option (d) is incorrect.