[单选题]
A 2.0-mF capacitor is charged to*chltd qsrxz2- o0( m6 12 V and then disjjm0cf1dvtpipz k0*; 1s a4l+charged through a $4.0 \times 10^{6} \; \Omega$ resistor. How long will it take for the voltage across the capacitor to drop to 3.0 V?
A. $8.0 \; s$
B. $11 \; s$
C. $22 \; s$
D. $24 \; s$
