the tough question: Which preamplifier? and why

The amp is a GRAAF iti 50/50
tube amplifier, 50W, input sen of 1.4V

and the choices are:

A. Placette (passive linestage) to keep the system simple and clean, the amp has good numbers
B. McIntosh C15 (solid state with phono)keep things from getting sluggish, don't need a prephono,
C. Audio Note M2 (tube with phone)

thanks in advance