Um engenheiro recebeu uma especificação quanto à resposta...

A

(3), com R1= 3,0 k,
R2= 12,0 k e C1= 200,0 nF;

B

(1), com R1= 6,0 k
R2= 6,0 k C1= 100,0 nF e C2= 200,0 nF;

C

(2), com R1= 9,0 k,
R2= 1,0 k e C1= 100 nF;

D

(2), com R1= 12,0 k,
R2= 12,0 k e C1= 100 nF;

E

(3), com R1= 1,0 k,
R2=10,0 k e C1= 200 nF.