{{B}}sEt 3Anthropology{{/B}}

ACCorDing to thE proFEssor, why wAs thE Box shApE A mAjor DEvElopmEnt in homE BuilDing
A、it wAs EAsiEr to BuilD thAn thE rounD shApE.
B．it lED to thE invEntion oF thE winDow.
C．it CoulD BE Built in A shortEr lEngth oF timE
D．it AllowED rooms to BE joinED to onE AnothEr.