From the below Ellingham diagram, incorrect statement among the following is

at the temperature  above ${\mathrm{t}}_1^0\mathrm{c}$ , carbon can reduce Cu₂O

at the temperature above ${\mathrm{t}}_3^0\mathrm{c}$, carbon can reduce ZnO

at ${\mathrm{t}}_2^0\mathrm{c}$, ZnO_(s) will boils

reduction of Cu₂O with carbon requires low temperature when compared with the reduction of ZnO by carbon.