According to Dallas McKennon, the old way of making cartoons was to ______.A．do the drawin

According to Dallas McKennon, the old way of making cartoons was to ______.

A．do the drawings first, and then have the actors record the sound

B．photograph the actors first, and then do the drawings

C．record the sound first, and then photograph the actom

D．find the actors first and then have them record the sound

请帮忙给出正确答案和分析，谢谢！