Answer:
I LOVE LABELING THE HEART!!!!
Aorta(A) is the very top, in line with D
the spot below A is E, the Pulmonary artery
the spot above D but below E is the Left Ventricle(B)
The right ventricle(F) is the top in the row on the left, the bottom is the Right atrium(C)
Hope This Helps and makes sense!