a. The butterfly element can be done on the front, side or back.
b. If on the front the arms will be streamlined in front and the head will come up at the front or to the side to breathe.
c. If on the side, one arm will be close to the hips (not aiding propulsion) and one arm will be in front of the head in a streamlined position. The head will turn to the side to breathe.
d. If on the back the arms will be streamlined above the head.