Compared with technologies in the 16^th and 19^th century, technologies today are more ______.

A．to cover sth. with a layer of sth.
B．to combine two different things
C．to make sth, into the shape of a coat
D．to put a coat on sth.

A．to give a definition on modem technology
B．to give evidence to the statement that today's personal technologies are marvels of individual choice
C．to prove the rebuke of Karl Marx
D．to illustrate how modem technologies of different times affect people's life