Genetic counselors are available for diagnosing some diseases, and for in family planning. if a genetic counselor examines a pedigree chart and notices an occurrence of a disease in every generation, she has evidence that the disease is caused by

Your answer would be a autosomal dominant disorder.

Definition:

Autosomal Dominant Disorder:

A disorder in which could pass a disease from generations and on. In other words, future generations "inherit" the disease

Explanation:

The reason why "autosomal dominant disorder" is the correct answer because when a disease has been going on for many generations, this would be known as an autosomal dominant disorder, or ADD. What this means is that a person could have a mutant gene in them, also having a normal gene that is paired with  autosomal chromosomes. These diseases are inherited from a off spring that could take the disease and pass it on to their off springs, which would go on for generations due to the fact that it is a "dominant" trait. This is similar to the autosomal recessive disorder, but the autosomal recessive disorder needs two mutant genes in them, meaning that there is a less likely chance of getting the disease passed on to the off spring. The autosomal dominant disorder only needs one mutant gene in order to be effective during the inheritance for a offspring.

i think that it is c, d, and e, hope this