it's said that Janny will give her old father a birthday party,___ do you think

it's said that Janny will give her old father a birthday party,___ do you think
it's said that Janny will give her old father a birthday party,"___ do you think she will invite?"
"well,I know she'll invite___ her father wants"
A,who,whoever.B,whom,whom,C,who,who,D,whom,who
可认为第二个空应该是用宾格的whomever呀