Studies on the Self- Concept of the Siblings of Children

Studies on the self- concept of the siblings of children with disabilities are best described as

A) conclusive in their evidence that self- concept suffers.
B) highly relevant for brothers, but not sisters.
C) providing strong evidence of little effect on self- concept.
D) inconclusive, with varying and contradictory results.
E) conclusive that the self- concepts of siblings tend to be better than those of their peers.