Suppose you see the following lists of functions in the call stack window of your browsers debugger as you are examining your JavaScript code. What does this call stack information indicate?siftFlourprepareBatterbakeCupcakesa.ThebakeCupcakesfunction contains an error.b$.$ThesiftFlourfunction is active at the current breakpoint.c$.$ThebakeCupcakesfunction has called both theprepareBatterandsiftFlourfunctions.d$.$TheprepareBatterfunction calls thebakeCupcakesfunction.