Using the Cu-Ag Phase diagram shown below, answer the following questions: Which of the following statements is correct? The first material to form from a melt of 25 wt% Ag-balance Cu is: Composition (at% Ag) 20 40 60 80 100 0 1200 1 A -Liquidus 1000 Liquid -Solidus +L a B+L 800 779C (TE) E G B 8.0 (Cap) 6 Temperature (C) 71.9 (Ce) 91.2 (CBE) 600 Solvus a + B 400 H 2000 20 40 60 80 100 (Cu) Composition (wt% Ag) (Ag) O rich in Cu because this composition lies on the Cu-rich side of the eutectic point O rich in Ag because Ag has a higher melting point than Cu O rich in Ag because this composition lies on the Ag-rich side of the eutectic point O rich in Ag because the melt composition contains Ag O rich in Cu because Cu has a higher melting point than Ag