Machine-civilisation has made human life artificial.

Answer: Option B

Artificial : made or produced by human beings rather than occurring naturally, especially as a copy of something natural.
Genuine : truly what something is said to be; authentic.
Natural : existing in or derived from nature; not made or caused by humankind.
True : in accordance with fact or reality.
Authentic : of undisputed origin and not a copy; genuine.

Antonym of Artificial is Natural