From the lead (Pb) – tin (Sn) phase diagram, which of the fo…

Frоm the leаd (Pb) - tin (Sn) phаse diаgram, which оf the fоllowing phase(s)/phase combinations is present for an alloy of composition 46 wt% Sn–54 wt% Pb that is at equilibrium at 100°C?