lower critical point

upper critical point

point of recalescence

point of decalescence

lower critical point

upper critical point

point of recalescence

point of decalescence

there is no critical point

there is only one critical point

there are two critical points

there can be any number of critical points

pearlite

austenite

martensite

troostite

eutectoid steel

hypo-eutectoid steel

hyper-eutectoid steel

none of these