[单选题]
00.08: A pendulum is pulled to one side and-hhbjhk3h gikxergw 1 - 453k7 released ,ifyc4ut 08l jxvry4;b7zozagh8o,-. It swings freely to the opposite side and stops. Which of the following might best represenbtz-rz 7 ao0lhy,i8 x4 gvjc84ouy; f,t graphs of kinetic energy $E_k$, potential energy $E_p$ and total energy $E_T$?