The picture shows a family pedigree of Queen Victoria and her husband, Prince Albert. This pedigree indicates the gender of each person in the long family line and whether he or she had hemophilia, a condition in which a person's blood does not clot well or at all.

The statement that best describes the distribution of hemophilia among the members of Queen Victoria's family is:

B. A carrier female can have children who are not affected by the hemophilia trait.

This statement is correct because female carriers of the hemophilia gene (who do not express the condition themselves) can have children who inherit the gene and are affected, as well as children who do not inherit the gene and are unaffected.

Additionally, while hemophilia is more commonly expressed in males due to the X-linked recessive inheritance pattern, it is also important to clarify that females can be carriers without being affected. The other statements either misrepresent the inheritance pattern or incorrectly describe how hemophilia is expressed.