Is this a Complex Plane?

Greetings,

I looking at a Lancair ES kit plane. I know the plane is high
performance (210 or 310 hp engines) but is it also complex? The plane
has fixed landing gear, standard or slotted flaps and a constant speed
prop.. The real question boils down to this, does a plane have to have
all three elements (flaps, retractable landing gear AND a constant
speed prop.) or if it has just one (retractable langing gear OR a
constant speed prop.), does that make it complex?

I searched the group(s) and everyone has an opinion but nobody seems to
have a definition for "complex" that gives a yes or no answer to the
question of "is this a complex aircraft"

Hopefully I'm not looking for a simplex answer to an infinitely
difficult question. Thanks in advance,

David.