Human ingenuity was initially demonstrated in ______.

A．It is from second-hand information.
B．It is from the arguments about the country.
C．It is different from what one had before the travel.
D．It is gathered from other sources than from its inhabitants.

A．Because the violin was too expensive.
B．Because the violin was too big for her.
C．Because she was too young to play the violin.
D．Because her mother wanted her to play the piano.