A small-angle simple pendulum oscillates back and forth. A motion sensor is used to record the horizontal position \(x\) of the pendulum bob as a function of time \(t\), where \(x = 0\) represents the equilibrium position. The resulting graph is shown below.

Which of the following graphs could represent the horizontal acceleration \(a\) of the pendulum bob as a function of time \(t\) for the same interval?