The difference between "facts" and "theory" ______.

A．modern scientists and the ancient philosophers used similar techniques
B．the difference between inductive and deductive reasoning is non-existent
C．the ancient philosophers and scientists were primarily interested in "theories"
D．it is easy to convert "theory" into fact

A．the average man often uses in his own vocabulary what was once technical language not meant for him
B．various professions and occupations often interchange their dialects and jargons
C．there is always a clear-cut nontechnical word that may be substituted for the technical word
D．an educated person would be expected to know most technical terms