That would be the end of that species in one generation.
The answer you are looking for would be B. This is because if you are a productive worker your boss will view you as a responsible employee. Therefore valuing your work, your boss will have more respect for you in turn resulting in a better relationship.
Diabetes are common in inheriting, it could be pass from one generation to another but Cancer is purely mutagenic disease, and happens in an individual.
In short, Your Answer would be False. They are not common Hereditary disease
Hope this helps!