A referential constraint enforces a one-to-one relationship between the values in referencing columns (of the foreign key) and the referenced columns (of the primary key or unique constraint). ... The same data values can appear in the constrained columns of both tables.
I remember reading this in high school... the correct answer I believe is D; to explain where she started painting flowers.
The "C)He resists sending his daughter to Hill Farm Sanatorium because of the expenses involved" action in the scene most clearly supports Carmody's desire to save money. Carmody agrees that his daughter must undergo the doctor's treatment to heal her. However, he argues about the Hill Farm Sanatorium's cost of treatment.
