Which of the Following Is an Implication of the Resource

Which of the following is an implication of the resource dilution hypothesis?

A) That later-born children in a family will not perform as well as first-born children on achievement tests.
B) That a family's socioeconomic status diminishes with the birth of multiple children.
C) That only children have fewer social skills than children with siblings.
D) That first-born children in a family will not perform as well as later-born children on achievement tests.