The correct answer is known as "bot net".
A bot net is described as a cluster of Internet-connected devices, which may include smart phones, personal desktops, servers that are infected by a common malware, hackers pose this threat, since hackers are capable of hacking through internet-connected devices and may hack anyone without the owner's knowledge.
The answer for this question would be genetics-informed sociology.
The answer is B GDP has declined for 2 consecutive quarters
I believe it is known as the "margin of error" (B). Hope this helped!
An Arms-Build up would lead to peace due quite frankly, to fear. It would lead to peace, just like for example, North Korea. No one is allowed to have weaponry, meaning fear. No one attempts to revolt, due to fear. Having a militia, would enforce fear, causing no revolts, or riots, or anything of the sort.