Answer:A) a family member with multiple cancers.
Step-by-step explanation:
A pedigree tree reveals the family history of disease associated with any family member in the past which can be linked to present living members.
Cancer is a genetic disorder. It is caused by the mutation in one of the functional genes. This leads to abnormal growth of cells in the form of tumor. It is a heritable genetic disorder. The mutation may be pass to the next generation. Thus the appearence of disorder in generations can be traced with pedigree tree. The family member with multiple cancer has acquired cancer from previous generations.