请选择ABC)s'~5y;o-W2~ --- _______ kitchen is clean? ---- Mary's.;{1m+k3`2R(p4q8_7F:t5j'|0l'l
A. Who's;{1m+k3`2R(p4q8_7F:t5j'|0l'l
B. Whose;{1m+k3`2R(p4q8_7F:t5j'|0l'l
C. Who;{1m+k3`2R(p4q8_7F:t5j'|0l'l