Artificial intelligence
A natural language generation program must decide:

both (a) and (b)
when to say something
what to say
why it is being used
None of these

ANSWER DOWNLOAD EXAMIANS APP

Artificial intelligence
Artificial intelligence is

None of these
a set of computer programs that produce output that would be considered to reflect intelligence if it were generated by humans.
the embodiment of human intellectual capabilities within a computer.
All of these
the study of mental faculties through the use of mental models implemented on a computer.

ANSWER DOWNLOAD EXAMIANS APP