ROSTER sourced in mult-select question with options linked to a question from another roster group

Hi,

I want to make roster sourced on a multi-select question yes/no. Then, whitin this roster, I want to make a new mult-select question (say question A) with options linked to a question from another roster group (household members). The problem is here. Then, from the recorded answers in question A, I would like to make a new roster only with those selected household members. Do you know any way to make it.

Thanks