请选择DCBA-E3q1e4?*y/J(O8E Are you _____at home？(v8]([2L)|:},W5Y4u:a8w'W6T,_
A. help(v8]([2L)|:},W5Y4u:a8w'W6T,_
B. helps(v8]([2L)|:},W5Y4u:a8w'W6T,_
C. helping(v8]([2L)|:},W5Y4u:a8w'W6T,_
D. helpful(v8]([2L)|:},W5Y4u:a8w'W6T,_