In 2011, the number of transplants in the united states was 26,745, and the number of donors was 14,146. what is most likely the reason that there were more transplants than donors? a. the data that were used for comparison was not compatible. b. the data were not recorded accurately. c. there were retransplants done. d. each donor gave away more than one organ.

the answer is A and my reason is, is because i got the answer wrong and it told me the answer. this may be too late but at least someone can see this.

blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. as the ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs where it is oxygenated.