Final answer:
A complete atrioventricular canal defect is an ostium primum atrial septal defect with a canal-type ventricular septal defect and a common atrioventricular valve.
Step-by-step explanation:
An ostium primum atrial septal defect is a type of atrioventricular canal defect in which there is an abnormal opening in the atrial septum. It is often associated with other congenital heart defects, such as a cleft mitral valve and coarctation of the aorta. However, in the given options, the correct association with an ostium primum atrial septal defect is a canal-type ventricular septal defect and a common atrioventricular valve (Option D).