With Respect to the Cost of Raising Children, It Is

With respect to the cost of raising children, it is true that

A) Parents spend more on an only child than they do for a child with siblings.
B) Middle income parents spend about the same amount per child as upper-income parents do.
C) Parents in rural areas spend more per child than do parents in urban areas.
D) All of the above.
E) Both (a) and (c) above.