Need desperate help!!! Two Children (A and B) of equal weight are sitting on the seesaw holding rocks of equal weight so that the seesaw is balanced. Which of the following events would lower child B? Explain why or why not the situation is or is not the best choice. There is only 1 most appropriate situation. a) B drops her rock, but A does not b) A and B throw their rocks at each other. c) A holds her rock over her head and B throws her rock at A d) A drops her rock, but B throws hers straight up. e) Both drop their rocks at exactly the same moment.