The answer is
A. The heart is a muscular pump that acts to circulate blood to deliver oxygen all over the body.
https://humanbodyanatomy.co/parts-of-the-body-anatomy/parts-of-the-body-anatomy-anterior-and-posterior-parts-of-the-body-anatomy-human-anatomy-chart/
this link has a picture with the posterior region.
Answer:
paying special attiention to three of four children promotes strong attachments
