Don't assume a woman interviewer is married; use this title that came into usage in the 1970s
Please don't think I'm being rude, but using Ms or Mrs is probably less ... As 
recently as the 1970s and 1980s, usage of "Ms." was perceived by... [DOC] [TLE] How to address women whose marital status is unknown | MacRumors ... [PAR] Dec 12, 2008 ...