Final answer:
A female homozygous for an X-linked dominant trait will pass the dominant allele to all of her children, meaning all of her sons and all of her daughters will inherit and express the trait.
Step-by-step explanation:
When considering X-linked dominant traits, a female that is homozygous for the trait will transmit the allele to all her offspring regardless of sex. Since females have two X chromosomes, a homozygous female has the dominant allele on both of her X chromosomes. If we assume that alleles are inherited independently and follow Mendelian principles, then each child will inherit one of the mother's X chromosomes.
Therefore, all her sons will receive an X chromosome bearing the dominant allele (since they inherit their Y chromosome from their father and have no other X chromosome). Similarly, all her daughters will receive one X chromosome with the dominant allele, and, since the dominant trait will be expressed in the presence of a recessive allele on the other X chromosome (inherited from the father), all daughters will also express the trait. Thus, the correct answer is D: All of her sons and all of her daughters will inherit and express the X-linked dominant trait.