What Is Often Expected of Siblings,especially Sisters,with Respect to a Sibling

Multiple Choice

What is often expected of siblings,especially sisters,with respect to a sibling with physical or mental challenges?

A) to not talk about it outside of the family
B) to help with childcare and to include the sibling in social activities
C) to act as a third parent to the exceptional child
D) to act as a "normal" role model for the exceptional child