E7G06 (A) 
What steps are typically followed when selecting the external components for an op-amp RC active filter?
A. Standard capacitor values are chosen first, the resistances are calculated, and resistors of the nearest standard value are used
B. Standard resistor values are chosen first, the capacitances are calculated, and capacitors of the nearest standard value are used
C. Standard resistor and capacitor values are used, the circuit is tested, and additional resistors are added to make any needed adjustments
D. Standard resistor and capacitor values are used, the circuit is tested, and additional capacitors are added to make any needed adjustments
